Queueing theory is the mathematical study of waiting lines, or queues.
Queueing theory is the mathematical study of waiting lines, or queues. The theory enables mathematical analysis of several related processes, including arriving at the (back of the) queue, waiting in the queue (essentially a storage process), and being served at the front of the queue. The theory permits the derivation and calculation of several performance measures including the average waiting time in the queue or the system, the expected number waiting or receiving service, and the probability of encountering the system in certain states, such as empty, full, having an available server or having to wait a certain time to be served.Queueing theory has applications in diverse fields, including telecommunications, traffic engineering, computing and the design of factories, shops, offices and hospitals.
Fri, 8 Apr 2011 04:36:57


Check out these events publicized by OSAP!
Two Sigma Connect
Demonstrate your creative data analysis and visualization skills at Two Sigma Connect! Collaborate with fellow students to explore data’s possibilities and find meaningful patterns and powerful predictions. Show us your skills.
Throughout the 2-day competition, our modelers and engineers will be present to mentor and discuss the power of data. You’ll also have the opportunity to meet with some of our most innovative leaders in the field of big data and data visualization.
The competition is geared towards students pursuing their bachelor’s, master’s or PhD degrees in math, statistics, applied math or computer science.
Date & Time: Thursday, April 16, 2015 at 6:00pm – Saturday, April 18, 2015 at 2:00pm
Location: 101 Avenue of the Americas, New York, NY 10032
Prizes include: Best Data Interpretation, Best Visualization, and Best Beaker Application (Beaker is our polyglot web-based IDE allowing you to work in many languages simultaneously. It’s targeted at research, data analysis, and visualization, but it’s open source and you can use it to do almost anything.)
RSVP: Please apply for a spot by noon on Monday, March 30th by clicking here


Develop a PowerPoint 10 slide presentation with introduction and conclusion that answers the following 12 questions
1. What is the relationship between discounting and compounding interest?
2. What is the relationship between the present-value factor and the annuity present-value factor?
3. What will $5,000 invested for 10 years at 8 percent compounded annually grow to? How many years will it take $400 to grow to $1,671 if it is invested at 10 percent compounded annually? At what rate would $1,000 have to be invested to grow to $4,046 in 10 years?
4. Calculate the future sum of $1,000, given that it will be held in the bank for 5 years and earn 10 percent compounded semiannually.
5. What is an annuity due? How does this differ from an ordinary annuity?
6. What is the present value of an ordinary annuity of $1,000 per year for 7 years discounted back to the present at 10 percent? What would be the present value if it were an annuity due?
7. What is the future value of an ordinary annuity of $1,000 per year for 7 years compounded at 10%? What would be the future value if it were an annuity due?
8. You have just borrowed $100,000, and you agree to pay it back over the next 25 years in 25 equal end-of-year payments plus 10 percent compound interest on the unpaid balance. What will be the size of these payments?
9. What is the present value of a $1,000 perpetuity discounted back to the present at 8 percent?
10. What is the present value of a $1,000 annuity for 10 years, with the first payment occurring at the end of year 10 (that is, ten $1,000 payments occurring at the end of year 10 through 19), given a discount rate of 10 percent?
11. Given a 10 percent discount rate, what is the present value of an perpetuity of $1,000 per year if the first payment does not begin until the end of year 10?
12. Describe how Matthew 25:14-30 relates to the time value of money and concepts included in the various questions.
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About: John Scammell
- High school math teacher turned consultant.
Posts by John Scammell:
February 12, 2014 Radical SNAP
December 31, 2013 2013 in review
December 28, 2013 Math History
December 28, 2013 This Whole Thing is Silly
December 20, 2013 Curriculum and PISA
December 19, 2013 Grade Inflation
December 18, 2013 More Standardized Tests
December 15, 2013 Does Size Matter?
December 14, 2013 Better Teachers
December 14, 2013 State of Education
DisclaimerThe opinions expressed here are my own, and do not necessarily reflect the opinions of my employer.
Looking for WNCP Engaging Activities?The project I am working on to collect engaging activities with curricular links is over here.
Search Blog Posts
- @cornebica Frustrated. I replied with 1 tweet at 19 words. Got back 32 tweets and over 300 words. I NEED that to stop. It's stalking. 4 hours ago
- @rcraigen Mocked notion that times tables made math more fun. Did not mock concerns. I'm not who you think I am, but you don't listen. 4 hours ago
- @misterweidman It's a nice question. I'd talk to the student and see if she made a dumb mistake or if she truly mixes up SA and Volume. 16 hours ago
- @misterweidman Pretty much how you did. It's wrong. It's a beautiful SA calculation where volume was required. 16 hours ago
- @rcraigen @joe_bower @d_martin05 @websofsubstance @cuddle_fish I literally lol'ed at the first paragraph. 17 hours ago


My father's Day
My father is very bsuy. Every day he goes to work by subway. He teaches math at school, His math is very good! In the afternoon, he eats lunch at school. After lunch, he reads newspapers. Then he goes home at 5:30. He eats dinner. Then, he takes a bath in the evening. He watches TV at living room. After watching TV, he goes to bed at 10:00.
My father works hard. I like my father very much!


Perelmania. Topology of Bagel
My art project "Perelmania. The Topology of Bagel" is dedicated to the prominent modern mathematician Grigori Perelman and to his discoveries in the field of geometric topology, including that of the torus ("bagel"). The torus is a fascinating geometrical shape whose characteristics can serve as the basis for a model that describes the laws of the universe. I am also fascinated by the figure of Perelman himself: a man who is utterly fixated on his life's work, mathematics, and who has steadfastly rejected all extraneous things, such as prestigious cash awards and career opportunities.
I have created all the images of this series on the basis of the single public domain photograph of Perelman that is freely available on the Internet. If we create a composition out of several 3D models of "bagels" (tori) and "wrap" them with a map consisting of tiled photographs of Grigori Perelman, we will then create a "Perelman topology" of sorts, where the photographs themselves may be altered beyond recognition by the mapping algorithm.
In my project, the mathematician and his discoveries are merged into one, turning into a symbol of the infinite multidimensionality of the world. On the road to coming to grips with this multidimensionality, some outstanding individuals – geniuses – become guides for the rest of humanity.
My interest in the area of mathematics to which Perelman has contributed is no accident. As an artist working in the field of digital art, including 3D modeling, I interact with the topology of objects, since it is this topology that determines their visual characteristics. I also make use of the mathematical algorithms embedded in the 3D computer graphic applications. I am delighted by the endless variety of their visual possibilities and by the unexpected results they produce. For this reason, I describe the modern computer reality as my coauthor, and define the art created by the two of us as "hybrid" – i.e., an art produced through a partnership between a human being and a computer.
Perelmania. Topology of Bagel. Concept
Perelmania. Interface of Infinity. Enlarged Fagment of the Surface
Perelmania. Topology of Bagel (1)
Perelmania. Topology of Bagel (2)
Perelmania. Topology of Bagel (3)
Perelmania. The Interface of Infinity
Two interlinked tori create a 3D geometric object in the form of the number 8 – i.e., the sign of infinity. In my Interface of infinity series, the “face” is the actual face of the prominent mathematician Grigori Perelman, who has made an immense contribution to the geometric analysis of this object. I have used the tiled photographs of Perelman as a mapping wrapped around the surface of a 3D model of the infinity sign. In my project, the mathematician and his discoveries are merged into one, turning into a symbol of the infinite multidimensionality of the world. On the road to coming to grips with this multidimensionality, some outstanding individuals – geniuses – become guides for the rest of humanity.
Perelmania. The Interface of Infinity (1)
Perelmania. The Interface of Infinity (2)
Perelmania. The Interface of Infinity (3)


Peter Atkinson is Dean of the Faculty of Science and Technology at Lancaster University. Research focus in spatial data science, including spatial and spatio-temporal statistics and physical dynamic models applied to a range of environmental, epidemiological and socio-economic phenomena using remote sensing and other big data. Four most significant themes of research group are (i) remote sensing image downscaling and image fusion, based on explicit models of the space-time sampling framework, (ii) remote sensing of global changes in vegetation phenology and its climate drivers, (iii) spatial epidemiology of vector-borne disease transmission systems, including Trypanosomiasis and malaria, and (iv) spatial modelling of natural hazards and their impacts, including flood forecasting, landslide susceptibility mapping and near-Earth object impacts. Published around 300 peer-reviewed articles on these topics in international scientific journals, with Thompson H-index=69 in Google Scholar and H-index=49 in WoS. Led multiple large grants and supervised 60 PhD students. Editor-in-Chief of Elsevier journal Science of Remote Sensing, Associate Editor for Computers and Geosciences and sit on the editorial boards of Geographical Analysis, Spatial Statistics, the International Journal of Applied Earth Observation and Geoinformation, and Environmental Informatics.
Alessandra Menafoglio is an Assistant Professor in Statistics at the Department of Mathematics of the Politecnico di Milano, within the laboratory for modeling and scientific computing (MOX). Alessandra Menafoglio obtained her PhD in Mathematical Models and Methods in Engineering in 2015 at Politecnico di Milano. Her research interests focus on the study of innovative statistical models and methods for the analysis of complex and large data (such as curves and images), with particular emphasis on spatially distributed complex data. In the last years, she focused on the problems of modeling, prediction (kriging) and stochastic simulation for very general types of data, in the context of Object Oriented Spatial Statistics, with application to Earth and Environmental Sciences. Her doctoral thesis was awarded in 2016 with the “Eni Award, Debut in Research Prize”. Recently, she was awarded the 2019 Andrei Borisovich Vistelius Research Award by the IAMG. She is Associate Editor of the journals Stochastic Environmental Research and Risk Assessment and Applied Computing and Geosciences, and she is part of the Editorial Board of the journal Mathematical Geosciences.
Paula Moraga is an Assistant Professor of Statistics at the King Abdullah University of Science and Technology (KAUST) and the Principal Investigator of the Geospatial Statistics and Health Surveillance Research Group. Paula’s research focuses on the development of innovative statistical methods and computational tools for geospatial data analysis and health surveillance, and the impact of her work has directly informed strategic policy in reducing disease burden in several countries. She has developed modeling architectures to understand the spatial and spatio-temporal patterns and identify targets for intervention of diseases such as malaria in Africa, leptospirosis in Brazil, and cancer in Australia, and has worked on the development of a number of R packages for Bayesian risk modeling, detection of disease clusters, and risk assessment of travel-related spread of disease. Paula has published extensively in leading journals and is the author of the book ‘Geospatial Health Data: Modeling and Visualization with R-INLA and Shiny’ (2019, Chapman & Hall/CRC). Paula received her Ph.D. degree in Mathematics from the University of Valencia, and her Master’s degree in Biostatistics from Harvard University.


|fx(n) * 2n - x| < 2n
Since Java does not support higher order functions, these functions are actually represented as objects with an approximate function. In order to obtain reasonable performance, each object caches the best previous approximation computed so far.
This is very similar to earlier work by Boehm, Lee, Cartwright, Riggle, and O'Donnell. The implementation borrows many ideas from the calculator developed earlier by Boehm and Lee. The major differences are the user interface, the portability of the implementation, the emphasis on simplicity, and the reliance on a general implementation of inverse functions.
Several alternate and functionally equivalent representations of constructive real numbers are possible. Gosper and Vuillemin proposed representations based on continued fractions. A representation as functions producing variable precision intervals is probably more efficient for larger scale computation. We chose this representation because it can be implemented compactly layered on large integer arithmetic.
pi/4 = 4*atan(1/5) - atan(1/239)
All of the remaining trigonometric functions are implemented in terms of the cosine function, which again uses a Taylor series expansion.
The inverse trigonometric functions are implemented using a general inverse function operation in UnaryCRFunction. This is more expensive than a direct implementation, since each time an approximation to the result is computed, several evaluations of the underlying trigonometric function are needed. Nonetheless, it appears to be surprisingly practical, at least for something as undemanding as a desk calculator.
Several implementation efforts examined representations based on either infinite, lazily-evaluated decimal expansions (Schwartz), or continued fractions (Gosper, Vuillemin). So far, these appear less practical than what is implemented here.
Probably the most practical approach to constructive real arithmetic is one based on interval arithmetic. A variant that is close to, but not quite, constructive real arithmetic is described in
Oliver Aberth, Precise Numerical Analysis, Wm. C. Brown Publishers, Dubuque, Iowa, 1988.
The issues related to using this in a higher performance implementation of constructive real arithmetic are explored in
Lee and Boehm, "Optimizing Programs over the Constructive Reals", ACM SIGPLAN 90 Conference on Programming Language Design and Implementation, SIGPLAN Notices 25, 6, pp. 102-111.
The particular implementation strategy used n this calculator was previously described in
Boehm, Cartwright, Riggle, and O'Donnell, "Exact Real Arithmetic: A Case Study in Higher Order Programming", Proceedings of the 1986 ACM Lisp and Functional Programming Conference, pp. 162-173, 1986.


At Meadowside Primary School, we aim to develop pupils’ mathematical skills and confidence with the belief that everyone can achieve. We follow a mastery approach to the teaching of maths, based around Maths-No Problem! teaching methods and structure from Year 1 to 6. We place a strong emphasis on problem solving and discussion within the teaching and learning to help make mathematics engaging and interesting.
We support our children to develop a profound understanding of fundamental maths by developing the core competencies for maths:
- Metacognition – thinking about thinking – How do you know? Developed through discussion.
- Visualisation – using resources or creating an image to represent a situation to make sense of it.
- Generalisation – drawing general statements from specific cases (pattern spotting).
- Number Sense – seeing where it is appropriate to use known number facts.
- Communication – communicating mathematical ideas using precise mathematical vocabulary both verbally and in writing.
To support our children in building a strong recall of core number facts, we subscribe to Numbots and TT Rockstars. Having a secure recall of number facts ensures that children become confident mathematicians, able to apply their learning to a range of different contexts.
The following documents outline the Maths-No Problem curriculum and the school overviews for each year group


Graduate Group in Science and Mathematics Education (SESAME)
The Graduate Group in Science and Mathematics Education (known informally as SESAME) offers an interdisciplinary graduate program leading to a doctoral degree in science, mathematics, technology, and engineering education. The program is designed to give graduates advanced expertise in a STEM discipline as well as in educational theory and research methodologies.
This Graduate Group was established so individuals with training or experience in a mathematical, scientific, or technical discipline can pursue advanced studies focused on educational issues in these disciplines. SESAME produces scholars who can communicate effectively with scientists, mathematicians, and engineers as well as with educational researchers and practitioners. SESAME students are expected to attain a level of expertise equivalent to that of a Master's student in their chosen discipline.
To apply to the Interdisciplinary Ph.D. in Science and Mathematics Education, see the Online Graduate Application. We encourage you to read our application instructions thoroughly and begin your application early.


Our middle school section ranges from Year 6 to Year 9. The addition of Year 6 into our middle school has enabled specialist teachers to get a head start with the student’s education. Every student gets at least:
Two hours of:
• Expressive Arts, French, Geography, History and ICT.
Three hours of:
• PE and Science.
Four hours of:
• English, Mathematics and Spanish.
Our students finish their middle school sitting SAT’s in Year 9. This gives us an idea of their abilities when entering the Key Stage 4 section.
St. Anthony's College
St Anthony´s College, Camino de Coin,
Km. 5,25 Mijas Costa – Málaga.


This rig employs a pendulum to demonstrate acceleration due to gravity. The pendulum may also be used to illustrate simple harmonic motion, conservation of energy, differential equations, linearisation and vectors.
The rig consists of a webcam, a variable-length pendulum, a movable carriage (to set the pendulum in motion) and an ultrasound rangefinder (to measure the position of the pendulum in motion). The period of the pendulum may be determined from the ultrasound data which then allows a calculation of 'g', the acceleration due to gravity. Three versions of the experiments are anticipated: a single measurement (high school physics); multiple measurements but treated as a simple pendulum; and multiple measurements but treated as a compound pendulum (first year undergrad).


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A Bachelor of Science (BS) degree in Mathematics is a rigorous academic program that delves deep into the fundamental principles of mathematics. Over the course of this degree, students explore a wide range of mathematical topics, including calculus, algebra, statistics, and discrete mathematics. They develop strong analytical, problem-solving, and critical thinking skills that are highly transferable to various fields.
Graduates with a BS in Mathematics often pursue careers in areas such as finance, data science, education, research, or actuarial science. Additionally, this degree serves as a solid foundation for those looking to pursue advanced studies in mathematics or related disciplines, paving the way for careers in academia and cutting-edge research.
A Bachelor of Science in Mathematics offers a dynamic gateway to a world of boundless opportunities. Graduates find themselves at the forefront of innovation, whether in finance, technology, research, or education. The analytical prowess honed in this program equips individuals to solve complex problems, make informed decisions, and contribute to cutting-edge advancements across various industries. From data science to cryptography, from academia to entrepreneurship, a BS in Math empowers you to embrace the infinite possibilities of a mathematically enriched future.
If you have any questions, our customer care staff is available 24/7 to assist you. They will lead you through everything from the registration procedure to the course overview and offer you all the information you need for a good start.


Statistical analysis and simulation of random shock waves in Burgers turbulence
Professor Daniele Venturi
1pm, April 7th, 2014 (Monday)
Phillips Hall 736
Hosted by: Dr. Chunlei Liang (firstname.lastname@example.org)
In this talk I will present recent theoretical and numerical results on random shock waves in scalar conservation laws subject to random space-time perturbations and random initial conditions. By using the Mori-Zwanzig (MZ) formulation of irreversible statistical mechanics, I will derive exact reduced-order equations for the one-point and two-point probability density functions (PDF) of the solution field. In particular, I will consider the stochastic Burgers equation as a model problem and compute the statistical properties of random shock waves in the inviscid limit by using adaptive discontinuous Galerkin methods. Specifically, I will consider stochastic flows generated by high-dimensional random initial conditions and random additive forcing terms, yielding multiple interacting shock waves collapsing into clusters and settling down to a similarity state. I will also address the question of how random shock waves in space and time manifest themselves in probability space. The mathematical framework I will discuss is general and it can be applied to many disciplines, leading to new insights in high-dimensional stochastic dynamical systems and more efficient computational algorithms.
Daniele Venturi received the B.S. and Sc.M. degrees in Mechanical Engineering at the University of Bologna in 2002. Then he joined the Department of Energy, Nuclear and Environmental Engineering at the University of Bologna where he received the Ph.D. degree in thermo-fluid dynamics in 2006. Since 2010 he has been appointed as research assistant professor at the Division of Applied Mathematics at Brown University. His research interests embrace a wide range of topics. In particular, he has been working on theoretical and computational fluid dynamics, stochastic low-dimensional modeling and simulation of complex systems, probability density function methods and nonlinear functional analysis.


Aligned to current state standards, Spectrum(R) Critical Thinking for Math for seventh grade provides practice in:-operations with rational numbers-expressions, equations, and inequalities-ratios -probability -statisticsThis workbook helps seventh graders develop problem-solving skills.
In Spectrum(R) Critical Thinking for Math for sixth grade, students complete activities and learn problem-solving strategies for:-multiplying and dividing fractions-expressions and equations-probability and statistics-ratiosThis Spectrum math workbook aligns to current state standards.
Spectrum(R) Critical Thinking for Math for fifth grade provides practice in applying math to the real world. Skills covered include:-equations-measurement -place value-fractions-multiplication and divisionThis Spectrum Critical Thinking for Math workbook aligns to current state standards.
Spectrum(R) Critical Thinking for Math for fourth grade helps children understand concepts such as:-geometry-rounding-multiplication and division-addition and subtraction -fractions and decimalsSpectrum Critical Thinking for Math helps fourth graders improve problem-solving skills.
Spectrum (R) Critical Thinking for Math provides third graders with learning activities and problem-solving strategies for:-addition and subtraction through 4-digit numbers-multiplication and division-fractions-measurement-geometryThis Spectrum math workbook aligns to current state standards.
The Crazy Big Book of Third Grade Activities features fun ways to learn skills such as:-grammar and vocabulary-parts of speech-multiplication and division-measurementPacked with puzzles, this language arts and math activity book keeps kids engaged for hours.
The Investigating Third Grade workbook encourages children to solve puzzles, find evidence, and crack a case using math and language arts skills. The activities build essential skills such as:-vocabulary-grammar-multiplication-divisionPerfect for at home or on-the-go!
The standards-based Spectrum (R) Critical Thinking for Math for second grade guides children through problem-solving strategies including:-addition and subtraction-measurement-geometrySpectrum Critical Thinking for Math helps children apply classroom math skills to real-world scenarios.
The Crazy Big Book of Second Grade Activities provides practice for skills such as:-grammar and vocabulary-nouns and verbs-addition and subtraction-money-geometryWith a variety of puzzles and games, this workbook makes learning fun!
The Investigating Second Grade workbook encourages kids to use math and language arts skills while finding clues and solving cases. This educational mystery workbook covers skills such as:-grammar-spelling-countingAdd a fresh twist to standards-based learning with this mystery series!
Spectrum(R) Critical Thinking for Math for first grade provides practice in applying math to real-world situations by covering skills such as:-place value-addition and subtraction through 100-measurementSpectrum Critical Thinking for Math guides children through problem-solving strategies.
The Crazy Big Book of First Grade Activities covers essential concepts such as:-numbers and place value-addition and subtraction-grammar and vocabulary-parts of speechFilled with puzzles and games, this language arts and math activity book offers a fresh, fun way to learn at home.
Help your child master math and language arts while solving mysteries with Investigating First Grade. This workbook covers:-vowels-sentences-shapes-place valuePerfect for at home or on-the-go, Investigating First Grade provides a fun alternative for learning standards-based skills!
Second Grade Essentials provides practice in these important concepts:-addition-subtraction-measurement-fractions-dictionary skills-spelling patterns-consonant blendsThis workbook gives children the practice they need to apply skills both in and out of the classroom.Prepare your child for classroom success with Second Grade Essentials. This workbook supports learning in three important areas:-reading-math-basic skillsFilled with skill-building practice, Second Grade Essentials challenges children to apply learned skills to real-world experiences while communicating effectively and thinking critically.The Essentials series for prekindergarten to second grades helps build a strong foundation for a successful educational journey. Each practice page features a “One Step Further” activity to encourage your child to apply skills in everyday experiences, and each workbook includes a “Games and Activities” section to enhance the learning process with fun puzzles, mazes, and more.
Engage your child in active learning with First Grade Essentials. This workbook covers these skills:-vocabulary-consonant and vowel sounds-addition-subtraction-counting money-telling timePacked with fun practice pages, this workbook helps first graders develop skills for success in today’s classroom.Help your child learn how to apply classroom learning to everyday life with First Grade Essentials. This workbook encourages children to have fun while learning key skills in these areas:-basic skills-reading-mathFilled with grade-appropriate activities and practice, First Grade Essentials offers opportunities for active learning and supports the skills children need to think critically and communicate effectively.By focusing on important school skills, the Essentials series for prekindergarten to second grades helps build a strong foundation for your child’s success, this year and the next. Each practice page features a “One Step Further” activity to help your child apply the skill to real-world experiences. The books also include fun puzzles and mazes in a bonus “Games and Activities” section. Essentials is a complete resource to help your child develop twenty-first century skills!
Kindergarten Essentials helps children learn these important concepts:-rhyming words-handwriting-opposites-addition-patterns-numbers through 20This workbook challenges learners to apply skills both in and out of the classroom!Strengthen the home-to-school connection and prepare children for classroom success. Kindergarten Essentials supports learning in three important areas:-basic skills-reading-mathPacked with engaging practice, this workbook helps children learn how to communicate effectively and think critically.Make sure your child is ready to succeed in a twenty-first century classroom with the Essentials series. Available for prekindergarten to second grade, this series provides skill-building practice and fun activities. Each practice page features a “One Step Further” activity to encourage children to apply skills in everyday life. Workbooks also include a “Games and Activities” section to enhance the learning experience with puzzles, mazes, and more!


Over the past month, I’ve been working on a side project that investigated the Bayesian rating system of popular website vndb.net. It is somewhat well known that the Bayesian rating tends to underrate most games. Quite severely. The goal was to see if popular machine learning algorithms could be used to create a better prior estimate when a visual novel has only a small sample of votes. I have included my paper that goes into the VNDB Bayesian system in greater detail and the models I explored below.
In the end, I discovered a couple patterns in the data that the machines could identify to get pretty good estimates for the mean score of a visual novel. It turns out that voters are pretty consistent at rating games that have certain combinations of attributes.
It also turns out that voter bias does contain useful information for the construction of a prior. One flaw/feature in the design was that the total average of votes was used as the “true rating.” It is clear that any attempt to remove the bias from the votes will cause the average of a subset of votes to be a biased estimator of the total average, making it perform worse as the size of the sample gets larger. If we were to use the full formulation of the Platt-Burges model, the true rating would also remove the voter bias, and the sample average with voter bias removed would perform “better” than the sample mean itself. It may be of philosophical interest to know what this “unbiased average rating” is for a visual novel, but in practice, I don’t see it being particularly more useful than the sample mean itself.
I also discovered that the problem that the Bayesian score was trying to fix wasn’t a particularly important one. From the Central Limit Theorem, we know that the sample mean tends to be normally distributed around the population mean with smaller variance as the sample gets large. This project essentially demonstrated the CLT in action, and showed that even when the number of votes was as small as 30, that the sample mean does a pretty good job of estimating the rating of the game – much better than any prior estimate we can generate. A reasonable person can see that a game has a very small number of votes and not use that sample mean to heavily influence an opinion on the true rating of the game, and if it was really necessary to create a ranking list, one could simply only include games that have more than a certain threshold of votes.
One final observation, which is more trivia than anything, is that the VNDB data dump only includes votes from public users, while the website averages include hidden user votes. With only the public votes, the top 3 visual novels with more than a 100 votes in order are 1) Rance X, 2) White Album 2, and 3) Muv Luv Alternative. If this sounds familiar, it sounds a lot like the EGS ranking (at least the last time I checked). Conspiracy? Probably not. If Rance X ever gets translated to English, I expect it to return to its true spot on the top.
There is no doubt a lot more that can be discussed about the methodology. The fact that I performed the experiment with games with more than a 100 votes already begs the question of whether or not it’s really reasonable to expect the same patterns to exist in games with truly small numbers of votes. But as I mentioned already, it kind of feels silly to care so much about what to do with the ratings for these games when the problem fixes itself so quickly as more people vote. And if these votes never come, maybe the true numerical rating of the game is a mystery better left unsolved.


What TI Calculator Can Play Games?
Texas Instruments (TI) calculators have long been a staple in classrooms and educational environments. Known for their powerful computing capabilities and user-friendly interface, TI calculators are widely used by students and professionals alike. However, what many people may not know is that some TI calculators can also be used to play games. In this article, we will explore the different TI calculator models that support gaming and delve into some frequently asked questions regarding gaming on these devices.
TI-83 Plus and TI-84 Plus: These two models are the most popular TI calculators among students and professionals. While they are primarily designed for mathematical and scientific purposes, they can also be used to play games. The TI-83 Plus and TI-84 Plus feature a relatively large screen and a powerful processor, making them suitable for running games smoothly. Some popular games compatible with these models include Tetris, Snake, and various puzzle games.
TI-84 Plus CE and TI-84 Plus CE-T: These calculators are the successors to the TI-83 Plus and TI-84 Plus, respectively. They are equipped with a color screen and a faster processor, allowing for more advanced and visually appealing games. The TI-84 Plus CE and CE-T support a wide range of games, including classic titles like Super Mario, Flappy Bird, and Pac-Man.
TI-Nspire CX and TI-Nspire CX II: The TI-Nspire series is known for its advanced graphing capabilities and extensive functionality. These calculators are widely used in math and science education. While they are not primarily designed for gaming, there is a dedicated programming language called TI-BASIC that allows users to create and play games on the TI-Nspire CX and CX II. Some popular games available for these models include Minecraft, Pokémon, and various puzzle games.
1. Can I download games directly onto my TI calculator?
No, you cannot download games directly onto your TI calculator. You will need to transfer the game files from your computer to the calculator using appropriate software.
2. What software do I need to transfer games to my TI calculator?
You can use TI Connect software, which is provided by Texas Instruments, to transfer games from your computer to your TI calculator.
3. Are the games available for TI calculators free?
Some games for TI calculators are available for free, while others may require a small fee. You can find a variety of games on websites that specialize in TI calculator games.
4. Can I play multiplayer games on my TI calculator?
Yes, some games for TI calculators support multiplayer functionality. You can connect your calculator to another calculator using a link cable to play games with friends.
5. Can I create my own games for TI calculators?
Yes, you can create your own games for TI calculators using programming languages such as TI-BASIC or C. There are various online resources and communities that provide tutorials and support for game development on TI calculators.
6. Can I play games on older TI calculator models?
While older TI calculator models may not have as many gaming capabilities as the newer models, there are still a variety of games available for them. However, the graphics and performance may be limited compared to the newer models.
7. Are the games on TI calculators educational?
While TI calculator games are primarily designed for entertainment, there are also educational games available. These games can help reinforce math and science concepts in a fun and interactive way.
8. Can I install emulators on my TI calculator to play retro games?
Yes, it is possible to install emulators on some TI calculator models, which allow you to play retro games from consoles such as Game Boy or NES. However, it requires a more advanced understanding of programming and may not be supported on all TI calculators.
9. Can I play games during exams?
The use of calculators during exams is often regulated by educational institutions. It is important to check with your school or exam board to see if gaming on your TI calculator is allowed during exams.
10. Can I play games on my TI calculator without affecting its regular functions?
Yes, playing games on your TI calculator does not interfere with its regular functions. You can switch between gaming and using the calculator’s mathematical and scientific capabilities seamlessly.
11. Can I transfer games from one TI calculator to another?
Yes, you can transfer games from one TI calculator to another using the appropriate transfer software. This allows you to share games with friends or transfer them to a newer TI calculator model.
12. Can I play games on my TI calculator without interfering with my saved data?
Yes, playing games on your TI calculator does not affect your saved data or any files you have stored on the device. Games run separately and do not interfere with the calculator’s internal memory.
13. Are there any restrictions on the types of games I can play on TI calculators?
While TI calculators can support a wide range of games, there may be some limitations due to hardware and software compatibility. It is recommended to check the compatibility of games with your specific calculator model before downloading or transferring them.
14. Can I delete games from my TI calculator?
Yes, you can delete games from your TI calculator using the built-in file management system or the transfer software. This allows you to free up storage space or remove games you no longer wish to play.
In conclusion, TI calculators offer more than just mathematical and scientific capabilities. With the right software and game files, you can turn your TI calculator into a portable gaming device. Whether you want to play classic games or create your own, TI calculators provide a unique platform for gaming enthusiasts.


Welcome back, it is lovely to welcome and see all the children back.
This term we are starting our new topic ‘Through The Ages’. The pupils will be at the heart of their learning as they will be sharing their ideas with their class on the things they would like to learn. The pupils’ ideas will then be used to ensure there is full coverage of the curriculum through the six areas of learning including: Health and Wellbeing, Languages, Literacy and Communication, Mathematics and Numeracy, Science and Technology, Expressive Arts and Humanities. Within the topic we will be focussing on different big questions. Our first big question this term is:
If I was a Celt, where would I settle?


Sacred Geometry Talk and Visual Presentation
by Claudie Planche
Fri 11 October 2013
– 7 pm to 9.30 pm – £5
Venue: Stargaia, Glastonbury
We will present Sacred Geometry in various traditions and review the basic universal shapes found in nature. There will be an opportunity to explore 3D geometry pieces which express the alchemical language of life.
We will also introduce The Template Sacred Geometry Activation.
Sacred geometry brings us harmony, coherence and strength through our natural resonance with the building blocks of life. An evening that will put everything in perspective!
To book a place, contact us.


4 edition of The Wonderful world of mathematics found in the catalog.
Includes bibliographical references and indexes.
|Statement||edited by Diane Thiessen and Margaret Matthias.|
|Contributions||Thiessen, Diane., Matthias, Margaret.|
|LC Classifications||Z6651 .W85 1992, QA40.5 .W85 1992|
|The Physical Object|
|Pagination||xi, 241 p. :|
|Number of Pages||241|
|LC Control Number||92036493|
The Wonderful World of Communication book. Read reviews from world’s largest community for readers/5(3). ☆ Finished reading Woo's Wonderful World of Maths / Eddie Woo 08 December ISBN: pp. A jolly good read for anyone who has never studied maths or who dropped maths as soon as your school allowed you to do so. Eddie Woo, a whiz of a maths teacher, entertainingly explains things that you never realised had maths as their foundation /5.
The wonderful world of mathematics: a critically annotated list of children's books in mathematics Item Preview remove-circle Share or Embed This Item. Borrow this book to access EPUB and PDF files. IN COLLECTIONS. Books Pages: (shelved 1 time as history-of-mathematics) avg rating — ratings — published Want to Read saving.
Children's literature in mathematics has been a valuable tool for developing positive attitudes toward mathematics as well as for exploring mathematics. This book provides annotated bibliographies of children's literature books emphasizing mathematics education. Each review describes the book's content and accuracy, its illustrations and their appropriateness, the Author: Diane Thiessen, Margaret Matthias, Jacquelin Smith. Feb. 3rd – First Day of Semester 2. Feb. 7th – Fraction Quiz. Feb 12th- Light & Sound Quiz. Feb. 14th- Valentine’s Day. Feb. 14th – Pyjama Day/Wear Something Red Day.
MITSUBISHI TRUST & BANKING CORP.
Kingdom of the Netherlands
Communal riots in Jaipur, 1990
The Nature and dimension of the urban fiscal crisis
Fifty years later
Some pioneer Delaware families
State, society, and economy in the twenty-first century
Daytrips in Germany
Vibrations in physical systems
On the use and misuse of the peasantry
The Wonderful World of Mathematics Hardcover – June 1, by Lancelot Hogben (Author) out of 5 stars 5 ratings. See all 5 formats and editions Hide other formats and editions. Price New from Used from Cited by: 7.
The Wonderful World Of Mathematics book. Read 5 reviews from the world's largest community for readers/5.
The Wonderful World of Mathematics; The Wonderful World of Communication [Hogben, Lancelot Thomas] on *FREE* shipping on qualifying offers.
The Wonderful World of Mathematics; The Wonderful World of Communication5/5(1). The Wonderful World of Mathematics: A Critically Annotated List of Children's Books in Mathematics [Margaret Matthias, Jacquelin Smith, Diane Thiessen, Diane Thiessen] on *FREE* shipping on qualifying offers.
The Wonderful World of Mathematics: A Critically Annotated List of Children's Books in MathematicsCited by: Alex's Adventures in Numberland isn't quite as awful as that suggests, but it's very apparent Bellos is a journalist, not a mathematician.
He shares with most of his colleagues a subconscious but profound The Wonderful world of mathematics book of experts (to his credit, at least it is subconscious), an inability to distinguish substance and/5.
'Not just a great teacher, Woo's Wonderful World of Maths shows Eddie to be a storyteller too. Is there anything the Woo cannot do?' ADAM SPENCER, Ambassador for Mathematics, University of Sydney.
Special offers and product promotions. Buy a selected book and get free expedited shipping on products sold by Amazon AU.
/5(11). Every parent ought buy this book for their year old child. It is a very, very good introduction to more elementary mathematics. I still have mine from childhood and use parts of it in my Philosophy Courses (at a rather selective university) to help explain what my above-average college students never understood--were never taught/never asked TO THINK about--in 5/5(5).
13 Classic Mathematics Books for Lifelong Learners from many different fields of mathematics. And this book is not a textbook.
my jaw in fascination and awe at the wonderful world of Author: Ali Kayaspor. OCLC Number: Notes: First edition published in under title: Man must measure: the wonderful world of mathematics.
Description: 69 pages: illustrations ; 33 cm. Get this from a library. The wonderful world of mathematics. [Lancelot Thomas Hogben] -- Traces the history of mathematics as it developed and progressed with man's civilization.
LONGLISTED FOR THE ABIA GENERAL NON-FICTION BOOK OF THE YEAR 'I never thought I'd read a maths book cover to cover, let alone sing its praises. JENNY BROCKIE, journalist and TV host 'Not just a great teacher, Woo's Wonderful World of Maths shows Eddie to be a storyteller too.
Is there anything the Woo cannot do?' Eddie Woo is the. “Not just a great teacher Woo’s Wonderful World shows Eddie to be a storyteller too. Is there anything the Woo cannot do?” – Adam Spencer, Ambassador for Mathematics, University of Sydney.
Buy The wonderful world of mathematics by Lancelot Thomas Hogben online at Alibris. We have new and used copies available, in 0 edition - starting at $ Shop Range: $ - $ The Wonderful World of Mathematics | Lancelot Hogben | download | B–OK. Download books for free. Find books. First ed.
published in under title: Man must measure: the wonderful world of mathematics. Description: 96 pages illustrations (some color), maps, portraits 27 cm. 'I never thought I'd read a maths book cover to cover, let alone sing its praises.
Eddie Woo makes maths fun, accessible and relevant. Now we can all benefit from his extraordinary skill as a teacher.' JENNY BROCKIE, journalist and TV host 'Not just a great teacher, Woo's Wonderful World of Maths shows Eddie to be a storyteller too.
The Wonderful World of Mathematics, Lancelot Hogben, Garden City, 1st,Good dust jacket with moderate wear - pieces missing, Very Good+book with Seller Rating: % positive.
COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle.
The National Council of Teachers of Mathematics (NCTM) has articulated goals in the pursuit of mathematics literacy that include learning to value mathematics, becoming confident in one's mathematics abilities, becoming a mathematical problem solver, learning to communicate mathematically, and learning to reason mathematically.
Literature that explores mathematical Cited by: 'Not just a great teacher, Woo's Wonderful World of Maths shows Eddie to be a storyteller too. Is there anything the Woo cannot do?' ADAM SPENCER, Ambassador for Mathematics, University of Sydney About the Author Eddie Woo is the head mathematics teacher at Cherrybrook Technology High School, Sydney.
He has been teaching maths for more than /5(13). Over the years the book was lost from my father’s collection. But I found the scanned text online and finally got around to making a copy for my own digital files. The video puts things in a. First edition published in under title: Man must measure: the wonderful world of mathematicsPages: Don't know much about a science book Don't know much about the French I took But I do know that I love you And I know that if you love me too What a wonderful world this would be History Biology.


Sing a Song
The Money Song (Tune: The Itsy Bitsy Spider)
1 cent is a penny,
10 cents is a dime,
5 cents is a nickel,
Now you know that I'm...
Learning about the money,
And which coin is which.
Don't forget the quarter -
It's worth 25 cents!
Coins! by ABCMouse.com (Learn the names of the coins)
Help your child sort coins into groups by size. Talk about size and which coin is bigger.
Read a Book
Here are two book recommendations for today. Check out the picture book collection at your local library, where there are lots of books to choose from! Find nearby libraries
- Lemonade in Winter: a book about two kids counting money by Emily Jenkins; illustrated by G. Brian Karas
- Max's Bunny Business by Rosemary Wells


API Endpoints: Query string date expressions¶
Date expressions can be used in the
query parameter when retreiving and filtering Requests from the API.
The expression starts with an anchor date, which can either be
*), or a date string ending with
|| (two pipe characters).
This anchor date can optionally be followed by one or more maths expressions:
+1h– Add one hour
-1d– Subtract one day
/d– Round down to the nearest day
The supported time units differ from those supported by time units for durations. The supported units are:
Assuming now is 2001-01-01 12:00:00, some examples are:
|now in milliseconds plus one hour. Resolves to: 2001-01-01 13:00:00
|now in milliseconds minus one hour. Resolves to: 2001-01-01 11:00:00
|now in milliseconds minus one hour, rounded down to UTC 00:00. Resolves to: 2001-01-01 00:00:00
|2001-02-01 in milliseconds plus one month. Resolves to: 2001-03-01 00:00:00


At St John's C of E Primary School, Maths is an seen as an integral and essential element of our everyday lives and a necessary foundation for understanding the modern world.
Through the teaching of the Maths curriculum, pupils will make rich connections across mathematical ideas to become fluent in the fundamentals of mathematics, to reason mathematically and to become competent in solving increasingly sophisticated problems.
Daily teaching combines a concrete – pictorial – abstract approach (CPA) enabling children to explore mathematical concepts. By revisiting these concepts year on year children can build upon and deepen their knowledge and understanding.
Through a conceptual, engaging, practical and challenging learning experience all children leaving St John’s will have an appreciation of the power of maths, a sense of enjoyment and a curiosity about the subject.
Mathematical teaching and learning at St John’s is outlined in detail below.
Years 1 and 2
The key focus of mathematics teaching in Key stage 1 is to ensure that pupils develop confidence and mental fluency with whole numbers, counting and place value.
By the end of year 2 pupils should know the number bonds to 20 and be precise in using and understanding place value.
Pupils should develop their ability to recognise, draw, describe, compare and sort different shapes. They should also use a range of measures to describe and compare length, mass, capacity/volume, time and money.
Years 3 and 4
The key focus is to ensure that pupils become increasingly fluent with whole numbers and the four operations, including number facts and place value. Pupils will develop efficient written and mental methods and perform calculations accurately with increasingly large whole numbers.
Pupils will develop their ability to solve a range of problems including with simple fractions and decimal place value. They should draw with increasing accuracy and develop mathematical reasoning so that they can analyse shapes and their properties. They should use measuring instruments with accuracy and make connections between measure and number.
By the end of year 4 pupils should have memorised all of the multiplication tables up to and including the 12 multiplication table.
Years 5 and 6
The key focus is for pupils to extend their understanding of the number system and place value, to include larger integers. They will develop the connections between multiplication and division with fractions, decimals, percentages and ratio.
Pupils will be expected to solve a wider range of problems which will demand efficient written and mental methods of calculation. With this foundation in arithmetic pupils will be introduced to the language of algebra as a means for solving a variety of problems.
Geometry and measure will consolidate and extend previous knowledge developed in number. Pupils will classify shapes with increasingly complex geometric properties and learn the vocabulary they need to describe them.
By the end of year 6 pupils should be fluent in written methods for all four operations, including long multiplication and division and in working with fractions, decimals and percentages.


Financial economists argue that pension benefits are bond-like and should not be funded with equity investments without reflecting Actuarial science project risks of not achieving expected returns. However, assumption-dependent concepts are still widely used such as the setting of the discount rate assumption as mentioned earlierparticularly in North America.
The tools of differential calculus are applied to problems in: According to the Bureau of Labor Statistics, on average, there are a lower unemployment rates and higher wages for folks that have a masters or doctoral degree.
Inthe ASI started examinations upto Associate level, and instarted conducting Fellowship level examination leading to professional qualification of an actuary, till then the accreditation was based on Institute of Actuaries, London examinations now Institute and Faculty of Actuaries.
Explain changes in contract provisions to customers. They also devise new investment tools to help their firms compete with other financial service companies. Minimum entry requirements In order to qualify for entry, you will need a matric with mathematics and science as subjects.
Math 3 hours credit MATH Measure Theory and Integration A first course in measure theory, covering measure as a generalization of length, outer measure, sigma-algebras, measurability, construction of measures, Lebesgue measure on the real line, measurable functions and the Lebesgue integral.
Preference will be given to ACI candidates. The course consists of four modules: Masters Programs As the next degree after the Bachelors degree, Masters programs encompass options such as those listed below.
Eastern and Southeast Regions. As a result, actuarial science developed along a different path, becoming more reliant on assumptions, as opposed to the arbitrage-free risk-neutral valuation concepts used in modern finance. Usually, actuaries earn an undergraduate degree in mathematics, statistics or actuarial science, or a business-related field such as finance, economics or business.
Skills in SQL strongly preferred.
Topics covered are simple and multiple linear regression techniques, matrix notation, the design matrix, model building techniques, residual analysis, and non-linear regression. The objective of this course is to provide students with an overview of the tools and techniques mostly used by insurance companies and to a lesser extent by other financial intermediaries such as pension plans or foundations and endowments for Asset Liability Management.
Finally, funding schemes have to be developed that are manageable and satisfy the standards board or regulators of the appropriate country, such as the Financial Accounting Standards Board in the United States.
Sign up for job alerts. The ideal candidate will be an FSA and possess a minimum of 10 years of relevant experience in senior actuarial roles, with specific experience in financial risk management. Techniques of integration are studied, including improper integrals and numerical integration, and the tools of integral calculus are used to compute areas, volumes and arc lengths; and are applied to problems in physics and differential equations.
FSA to direct and provide actuarial and technical support for development and management of GAAP valuation and financial reporting systems including monthly, quarterly and annual financial reporting.
Experience in consulting or a large, complex, global organization would be an asset as the candidate will be expected to work within a matrix structure. At the same time there was a rapidly growing desire and need to place the valuation of personal risk on a more scientific basis.
What is Graduate School? FSA needed to supervise the actuarial model development processes. This led to the development of an important actuarial concept, referred to as the present value of a future sum.
Topics include methods for finding groups in data including cluster analysis, dimension reduction methods including multi-dimensional scaling, pattern recognition, and smoothing techniques.
Statistics and Math 3 hours credit STAT Statistics for Risk Modelling This course covers topics such as basics of statistical learning; linear models; time series models; principal components analysis; decision trees; cluster analysis; and an introduction to statistical learning, with applications in R.
The current debate now seems to be focusing on four principles: Determine equitable basis for distributing surplus earnings under participating insurance and annuity contracts in mutual companies.
One of the main functions of actuaries is to help businesses assess the risk of certain events occurring, and to formulate policies that minimize the cost of that risk. Other Qualifications In addition to knowledge of mathematics, computer skills are becoming increasingly important.
This course will use the R language, frequently used when initially designing an ERM model. Testify before public agencies on proposed legislation affecting businesses. Product design adds another dimension to the debate.
Actuaries could now begin to estimate losses using models of random events, instead of the deterministic methods they had used in the past. This concept is inconsistent with financial economics. An Assessment Test will be administered during the first week of classes and students who do not pass the Assessment Test will be required to attend an additional Pre-Calculus Review tutorial if they wish to remain in the course.
They often work at least 40 hours a week. Math and Stat or permission of the instructor 3 hours credit STAT Applied Regression Analysis This course builds upon the basis of inference studied in Statistics and provides students with an advanced knowledge of regression techniques.
Three lecture hours per week 3 hours credit MATH Foundations of Geometry This course presents an axiomatic base for Euclidean geometry and an insight into the interdependence of the various theorems and axioms of that geometry and non-Euclidean geometries.palmolive2day.com portals provides educational instructional project topics and material guides, Research Project writing guides, project data analysis, research/writing jobs, proof reading, student project corrections, seminars papers, PowerPoint presentations, Thesis, business plan.
ACTUARIAL SCIENCE Free Undergraduate Project Topics And Research Materials, Free Undergraduate Project Topics, Research Materials, Education project topics, Economics project topics, computer science project topics, Hire a data analyst.
COMMON BREADTH REQUIREMENT. Students must take at least 15 semester hours of credit beyond the core course requirement in courses outside the School of Mathematical and Computational Sciences, and of these 15 semester hours of credit at least 6 must be from outside the Faculty of Science. Wolfram offers advanced technical computing solutions for all fields of industry, education, and technology.
MSC in Actuarial Science Summer Projects (MSc Dissertations) Project RISK ANALYIS USING COPULAS Supervisor: Andrew Cairns. Number of students: Technology Enhanced Learning in Actuarial Science The Project In this site, you will find resources that will enhance your ability to learn the basic actuarial curriculum.Download


Petition to Remove TERC "Investigations" K-5 Math Curriculum From Prince William County Schools (PWCS)
Prince William County School Board and Superintendent of Schools
More Info at:
Of all the elementary school math programs listed by the Virginia Department of Education (VDOE), Investigations least adequately supports the Virginia mathematics Standards of Learning (SOLs) and is excluded by VDOE for Grade 5 due to its inadequacy. Investigations has an ongoing record of failure across the United States. Math experts from Harvard and Stanford University assess such reformist math programs as falling short of giving students the essential mathematics skills to reason accurately, and regard Investigations as especially deficient resulting in children falling roughly two years behind where they should be by the end of fifth grade (as referenced through the website: http://www.pwcteachmathright.com).
DOCUMENTED DEFICIENCIES OF Investigations:
DOES NOT teach proven standard, simple efficient and effective methods of solving mathematics problems.
DOES NOT promote mastery of basic arithmetic facts.
DOES NOT teach mastery of multiplication tables.
DOES NOT teach simple long division.
DOES NOT provide sufficient practice for children to master math concepts and applications.
DOES overemphasize the use of calculators.
DOES rely on group think and discovery by children vice individual mastery through teacher instruction and quality materials.
DOES progress at a remedial pace.
The overwhelming majority of Prince William County elementary school students were excelling in traditional mathematics prior to implementation of Investigations. This is evidenced by PWCS annual average grade 3 and 5 SOL scores for the last several years and the nearly 50\% of all PWCS elementary school students who, in the last two years running, scored high enough in annual SOL testing to qualify for advanced/extended mathematics programs in middle school (http://www.doe.virginia.gov).
PWCS abandoned a successful, proven traditional approach to math education and replaced it with Investigations. PWCS continues to invest tax dollars in an experiment on the countys elementary school children. Given the nationwide failures of Investigations and programs like it, we are not willing to allow PWCS to gamble with our childrens mathematics educational future.
For the benefit of our children, our school district, and our community, we, the undersigned parents and citizens of Prince William County, Virginia, hereby formally request PWCS remove Investigations from PWCS core elementary mathematics instruction. We specifically request that PWCS:
Stop adoption and/or further implementation of Investigations beyond the current 2007-2008 school year.
Remove "Investigations" as the core PWCS elementary math program no later than the start of the 2008-2009 school year.
Allow PWCS parents to opt out of Investigations immediately and be provided with an appropriate traditional mathematics education for their children in every PWCS elementary school using either the legacy PWCS traditional core mathematics courseware or any of the top four recommended traditional elementary math text/materials series approved by VDOE (Harcourt Math, Houghton Mifflin Math, Scott-Foresman Addison Wesley Mathematics, or Saxon Math).
Offer immediate summer remediation for students whose parents assess their children have not received sufficient and appropriate grade level instruction in basic math facts and standard arithmetic algorithms under Investigations so PWCS children have an opportunity to "catch back up" in math to where they would have been under a sound traditional math program.


Math says that 1 + 2 = 2. If you talk with one person who loves math and another who hates math, they’ll each have a different perception of math. One person believes math is intriguing and fun, while the other may have a belief that math is terribly frustrating. So, how you perceive and interpret your reality will also have an effect on what you are attracting in your life.
Law Of Attraction Games
After you’ve set your powerful intentions, designed all of your desires with pinpointed specificity and then heightened your vibration with your thoughts and feelings, you then need to let go of your expectations. This can be the trickiest part of the manifesting process because you need to get out of your own way. Too often people sabotage themselves at the point where they just need to trust. The best affirmation to use?
What Does Inbound Manifest To Hub Mean


Cordially invites you to attend an open lecture
Visual Cryptography Scheme - A Brief Survey
National Centre for Advanced Research in Discrete Mathematics (n-CARDMATH)
Kalasalingam University and Conjoint Professor
School of Electrical Engineering and Computer Science
The University of Newcastle
Date: Monday, November 14th, 2011
Time:6:00 pm – 7:00 pm (free admission)
Venue: BUiD Auditorium, 1st Floor, Block 11, Dubai International Academic City
The lecture will discuss the following:
Let P be a set on n elements, called participants. Consider a secret image which consists of black and white pixels. A (k,n) - Visual Crptography Scheme is a method of constructing n shares of the secret image, one for each participant, in such a way that the secret image can be reconstructed from k or more shares but not from less than k shares. The process of reconstruction is purely visual in the sense that if each share is xeroxed on a transparency, the recovering of the image is just by stacking the respective transparency sheets. In this talk we give a brief survey of Visual Crptography Scheme and its applications.
About the speaker:
Dr. S. Arumugam is Senior Professor (Research) & Director (n-CARDMATH), Kalasalingam University. Krishnankoil-626 190 from August 4, 2003 to till date. He has over 44 years of experience in teaching and was awarded too many awards during his career. He has 149 Research Publications and has published 23 books.
Some of his awards are: Vocational Excellence Award for 30 years of dedicated and Exemplary research oriented teaching in Mathematics by Rotary Club of Tirunelveli West on March 11, 2003.
President of Academy of Discrete Mathematics and Applications from June 2008 for a period of two years.
Awarded Fellow of The Institute of Combinatorics and Applications (FTICA) by the Institute of Combinatorics and Applications, Canada
For further information please contact us on 04 391 3626
To book your place at the lecture, please click here!
Want to receive our newsletter?
P.O. Box: 345015 Dubai
Tel.: +971 4 391 3626
Fax: +971 4 366 4699


I don't think I've ever felt a strong call to do something particular with my life. I've had several hobbies that went from obsession to mild interest, that would have made fine career options if I possessed the mathematical aptitude...mineralogy (I still love rocks), meteorology (I still love weather), volcanology (I still love volcanoes) among them. Alas, though I get a weird thrill at the prospect of doing basic math, I don't have a head for numbers. I failed geometry...twice. I don't think I even passed Algebra II before I quit high school after my junior year ended.
a + 9 = 16
a + 9 - 9 = 16 - 9
a = 7
That's about the extent of my mathematical skill. It's more than enough to get me by in the world, though, when my job consists of solid, basic math. It's not enough, however, to foster a desire to devote thousands of hours to fruitless study of calculus just so I can try to forecast when a volcano will wipe out a village of 200 in Africa. Those people deserve a better class of volcanologist. :)
No, if I have a calling, it's to write. I love the English language, and despite myself, I have a love of writing. I've developed a concept for my first book, joined a writer's group and intend to write a short blog every day to start developing some discipline and comfort with writing. Blogs will be short, just enough to get me started.
I'm also going to revisit some old stuff I've written on previous blogs.
Op Eleanor - Year 4
2 years ago


This document describes the steps required to correctly calculate and measure the motor revs/inch ratio for your machine. It further explains how to check and/or correct these values in the parameter settings of a Centroid CNC Control.
A known accurate measure (for the example a 10" gauge block will be used). 1.
Calculator, pen or pencil. 2.
1. From the main screen in the CNC7 software, press the following keys in order to get into the following parameter
screen. F1 − Setup, F3 − Config, Enter the password 137 − Enter, F2 − Machine, and then F2 − Motor. Enter the current ratio values into the chart below for Motor Revs/Inch. 2.
|Current Ratio||New Ratio − after|
|Motor Rev/In||Calc. or measure|
Method 1 − Calculated, assuming ballscrew pitch and pulley ratios are known:
Using the following formula, calculate and enter the correct motor revs/inch value in the machine parameter screen as shown above.
tpi = 1/pitch
ratio = # of teeth on ball screw pulley / # of teeth on motor pulley revs/inch = tpi * ratio
tpi = Turns per inch of the ball screw (given) pitch = Pitch of the ball screw (given) ratio = The gear ratio of the pulleys (calculated) revs/inch = Motor revs per inch (calculated)
Example: See Diagram 2 on next page.
tpi = 5 Ratio = 48/24 = 2 Motor revs/inch = tpi*Ratio Motor revs/inch = 5*2 Motor revs/inch = 10
Note, this method assumes that the pitch and gear ratios are known. It is not uncommon that slight corrections based upon a measured test produce more accurate positioning throughout the entire axis travel. However, entering a Motor revs/in value based upon stated specifications should eliminate any gross errors.
Method 2 − Measured, assuming you have an accurate measuring method:
(NOTE: This method may also be used if the pulley ratio is unknown.)
Secure a 10" gauge block to the table. 1. Indicate one end of this block and set a part zero. Use probing cycles if you have this option. 2. Find (or probe) the opposite end of the block and record the distance the DRO displays. 3. Using the formula below, calculate the new motor revs/inch value: 4.


My Homework Helper Lesson 4
Homework Helper Write the place and value of the highlighted digit in 8,304,421. Chapter 12 Lesson 7. Lesson 4 best creative writing programs west coast : Count up to 1,000 on the place value chart. Solve using place value strategies. 6 6 My homework helper lesson 7 partition shapesFor example, partition a shape into 4 parts with equal area, and describe the area of each part as 1/4 of the area of the shape Demonstrate how to partition the birthday cake into pieces by creating columns and rows using the color tiles. 45∙1 45. Lesson 9: Place the First Digit/ My Math Lesson 9 Answer Key. my homework helper lesson 4
Hundreds ones tens ones tens ma creative writing interview hundreds hundreds ones tens Millions Period Ones Period Thousands Period 8 421 304 The 3 is in the hundred thousands place. I would LOVE some help on this SS my homework helper lesson 4 test, for Connections Academy! Maddy goes to the pond my homework helper lesson 2 and catches 8 bugs, 3 frogs, and 2 tadpoles Eureka Math™ Homework Helper 2015–2016 Grade 2 Module 4 Lessons 1–28. The value of the 3 is 3 × 100,000, or 300,000. Powered by WordPress Lesson 4: Numbers Raised to the Zeroth Power 8• 1 G8-M1-Lesson 4: Numbers Raised to the Zeroth Power Let 𝑥𝑥, 𝑦𝑦, 𝑓𝑓, and 𝑔𝑔 be numbers (𝑥𝑥,𝑦𝑦, 𝑓𝑓,𝑔𝑔≠0). Lesson 10: Quotients with Zero/My Math Lesson 10 Answer Key. Use a place-value chart. 2•4 A Story of Units G2-M4-Lesson 2 1.
2015-16 Lesson 2 : Add and subtract multiples of 10 including digestive system creative writing assignment prologue counting on to subtract. Use the table below to find videos, mobile apps, worksheets and lessons that supplement McGraw-Hill My Math Grade 4 Volume 1 book CHAPTER 1 HOMEWORK SHEETS. 𝑥𝑥 6 𝑥𝑥6 = 𝒙𝒙𝟔𝟔− = 𝒙𝒙𝟎𝟎 = 𝟏𝟏 3. 2015-16 Lesson 1 : Bundle my homework helper lesson 4 and count ones, tens, and hundreds to 1,000. Lesson 1 Place Value Lesson 1 My Homework15.
Fill in the missing part. Lesson 2 : Count up and down where to buy essay papers between 100 and 220 using ones and tens Eureka Math™ Homework Helper 2015–2016. my homework helper lesson 4 A A Story of Units 2•3 G2-3-Lesson 4. A Story of Units 2•3 G2-M3-Lesson 1 1.
My Math Lesson 7 Answer Key. Lesson 11: Hands On.1. Textbook: McGraw-Hill My Math Grade 4 Volume 1 ISBN: 9780021150236. Use the arrow way, number bonds, or mental math , and record your answers. my homework helper lesson 4 a.
Grade: 3, Title: My Math 3 Volume 2 Common my homework helper lesson 7 fractions as one whole Core, Publisher: McGraw-Hill, ISBN: 21161917. 48 + 30 = 𝟕𝟕𝟕𝟕. Simplify each of the following expressions. Leave my homework helper lesson 4 this field empty if you're human: Copyright 2020 By The Homework Helper. Lesson 8: Divide Three- and Four-Digit Dividends/My Math Lesson 8 Answer Key. USA » Common Core my homework helper lesson 7 partition shapes State Standards » Math. All rights reserved.


Suppose Ann and Bob each have $90 with which to buy xanthum (x) and yarrow (y). Their preferences are represented, respectively, by
the utility functions ( u(x,y) = xy ( MUx=y, MUy=x ) for 16 utils and 25 utils) and ( u(x,y) = 6x+2y ( MUx=6, MUy=2 ) for 30 utils and
60 utils) Assuming the price of x is $12 and the price of y is $2, draw their common budget set. Next, determine each agent’s demands
for x and y.
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- Is a plane zero dimensional?
- What are the 7 types of angles?
- Are opposite rays congruent?
- What is the difference between Ray AB and Ray ba?
- Is a ray two dimensional?
- How do you prove two lines are congruent?
- Are angles two dimensional?
- Is a rhombus a 2 dimensional shape?
- What is a 3 dimensional object?
- Are all rays congruent to each other?
- Is every ray part of an angle?
- What does it mean if a line is congruent?
- How do you know if coordinates are congruent?
- What is a 1 dimensional vector?
- What does 2 dimension mean?
- Can 2 lines be congruent?
- Are opposite rays equal?
- What is a congruent segment?
- What is Angle ABC?
- What is a 1 dimensional shape?
- How many dimensions does a triangle have?
- What is an opposite Ray?
- Is a ray one dimensional?
- What does congruent mean?
Is a plane zero dimensional?
In mathematics, a plane is a flat, two-dimensional surface that extends infinitely far.
A plane is the two-dimensional analogue of a point (zero dimensions), a line (one dimension) and three-dimensional space..
What are the 7 types of angles?
Types of Angles – Acute, Right, Obtuse, Straight and Reflex…Acute angle.Right angle.Obtuse angle.Straight angle.Reflex angle.
Are opposite rays congruent?
Definition: Vertical angles: Vertical angles are two angles such that the sides of one angle are opposite rays to the sides of the other. Definition: Opposite Rays: Opposite rays are rays that lie on the same line and intersect in just one point. … Theorem 18: Vertical angles are congruent.
What is the difference between Ray AB and Ray ba?
No, Ray AB and Ray BA are not same. Ray: It has one initial point and it goes upto infinity. Initial Point of Ray AB is A and that of ray BA is B. So these rays are moving in opposite directions to each other.
Is a ray two dimensional?
A point is a zero-dimensional object that defines a specific location on a plane. … A ray begins at one point and goes on towards infinity in one direction only. A plane can be described as a two-dimensional canvas that goes on forever.
How do you prove two lines are congruent?
The other line segment will change to remain congruent with it. Line segments are congruent if they have the same length. However, they need not be parallel. They can be at any angle or orientation on the plane.
Are angles two dimensional?
An ordinary angle is a measure of the length subtended by a one-dimensional subset of the plane. … The 16 arc that subtends the angle is a one-dimensional subset of the two-dimensional plane.
Is a rhombus a 2 dimensional shape?
2D shapes have only 2 dimensions and are flat e.g. square, rectangle, triangle, circle, pentagon, hexagon, heptagon, octagon, nonagon, decagon, parallelogram, rhombus, kite, quadrilateral, trapezium. 3D objects have three dimensions. The flat surfaces (faces) of many 3D objects are made up of 2D shapes e.g.
What is a 3 dimensional object?
Three Dimensions: The objects around you, the ones you can pick up, touch, and move around, are three-dimensional. These shapes have a third dimension: depth. Cubes, prisms, pyramids, spheres, cones, and cylinders are all examples of three-dimensional objects.
Are all rays congruent to each other?
(Remember, two geometric figures are called congruent if there is an isometry taking one to the other.) Theorem (RCT: Ray Congruence Theorem). Any two rays are congruent. … Two segments are congruent if and only if they have equal length.
Is every ray part of an angle?
What is an Angle? Two rays that share the same endpoint form an angle. The point where the rays intersect is called the vertex of the angle. The two rays are called the sides of the angle.
What does it mean if a line is congruent?
Congruent line segments are simply segments with the same measure (length).
How do you know if coordinates are congruent?
Given two triangles on a coordinate plane, you can check whether they are congruent by using the distance formula to find the lengths of their sides. If three pairs of sides are congruent, then the triangles are congruent by the above theorem.
What is a 1 dimensional vector?
When n = 1, the set of all such locations is called a one-dimensional space. An example of a one-dimensional space is the number line, where the position of each point on it can be described by a single number. … A field k is a one-dimensional vector space over itself.
What does 2 dimension mean?
In geometry, a two-dimensional shape can be defined as a flat plane figure or a shape that has two dimensions – length and width. Two-dimensional or 2-D shapes do not have any thickness and can be measured in only two faces.
Can 2 lines be congruent?
Two line segments are congruent if they have the same length. They do not need to have the same position or orientation.
Are opposite rays equal?
Lesson Summary Rays are always named with two points and the first point in the name must be the endpoint. So, when you name opposite rays, the first letter in the name of both rays must be the same. The three points involved in naming a pair of opposite rays must always lie on one straight line.
What is a congruent segment?
Congruent angles are angles that have the same measure. Congruent segments are segments that have the same length. … The midpoint of a segment is a point that divides the segment into two congruent segments. A point (or segment, ray or line) that divides a segment into two congruent segments bisects the segment.
What is Angle ABC?
Angle ABC is a straight angle, or 180°. Angle f, g, and h together must add to 180°. Try again. Angle ABC is a straight angle, or 180°.
What is a 1 dimensional shape?
A 1D shape is a shape that has only one dimension like a straight line. … A 2D shape is a shape that has two dimensions like a triangle or a circle.
How many dimensions does a triangle have?
A flat shape is called a two-dimensional shape because it has two dimensions (in the case of a triangle they are often called base and height) while a three dimensional shape will have three dimensions.
What is an opposite Ray?
Opposite rays are two rays that both start from a common point and go off in exactly opposite directions. Because of this the two rays (QA and QB in the figure above) form a single straight line through the common endpoint Q. When the two rays are opposite, the points A,Q and B are collinear.
Is a ray one dimensional?
The point where the ray starts is called (confusingly) the endpoint. On its way to infinity it may pass through one or more other points. … A ray is one-dimensional. It has zero width.
What does congruent mean?
: having the same size and shape congruent triangles.


How much sod do I need?
Here's how to measure you yard for sod. Grab a piece of paper and draw the areas to be sodded. Break up the areas into the shapes listed below. Measure the areas and write down your measurements. Now, calculate the sq.ft. of you areas based on the equations listed below and total.
Square or Rectangle
To figure the area of a square or rectangle, measure the Length & Width and multiply.
Length x Width = Area
12 x 24 = 288 sq.ft.
A Right Triangle has one 90º corner. To figure the area of a right triangle, multiply the two sides that contact the right angle and divide by 2
Length x Width / 2 = Area
12 x 24 = 288 ÷ 2 = 144 sq.ft.
Circle, 1/2 Circle, 1/4 Circle
To figure the area of a circle, take the radius times the radius, then multiply by 3.14. Radius is a straight line from the center of a circle to the outside of the circle.
(Radius x Radius) x 3.14 = Area
6 x 6 = 36 x 3.14 = 113 sq.ft.
Half Circle divide by 2
6 x 6 = 36 x 3.14 = 113 / 2 = 56.5 sq.ft.
Quarter Circle divide by 4
6 x 6 = 36 x 3.14 = 113 / 4 = 28.25 sq.ft
Once you have your total sq. footage of your project space, you can now determine how much sod you need to purchase...
Due to the perishable nature and weight of sod, it is best to run short than to over order and have extra sod. We cannot take back sod once it has left our farms or been delivered at your house. This is a guide to help you measure accurately. Check your numbers twice. We cannot and do not take responsibly for footage figures unless we measure it ourselves. Order 5% to 10% over depending on shapes and curves.


Method of simulating real life situations with mathematical equations to forecast their future behaviormathematical modeling uses tools such as decision theory queuing theory and linear programming and requires large amounts of number crunching. Mathematical modeling mathematical models are useful tools for engineers who study the effects of traffic on a bridge telephone companies that want to know the best price to charge for long distance service and social scientists who wish to predict trends in population and disease
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Discovery Education's® WebMATH website http://webmath.com is a math-help website that generates answers to specific math questions and problems, as entered by users. Math answers are generated and displayed in real-time. In addition to the answers, Discovery Education's® WebMATH website shows users how to arrive at the answers to the math problem(s) they enter.
Apps4Android's "IDEAL Web Math" suite of accessible "mobile browsers" were conceived of, developed, and are supported by IDEAL Group, Inc. and Apps4Android, Inc. Neither IDEAL Group, Inc., Apps4Android, Inc. nor its suite of accessible mobile browsers are affiliated, in any manner, with Discovery Education®.
The objectives for developing accessible, customized, mobile browsers are to:
1. Accommodate the technology access needs of tens-of-millions of students with print disabilities who may have difficulty accessing and using standard websites. They do this by making standard websites less complex and easier to access and use; and,
2. Provide disadvantaged students, who do not have the luxury of having home-based PCs connected to the Internet, with mobile-friendly “ports-of-entry” to standard websites.
We would like to thank:
1. Discovery Education® for their thought-leadership in developing and offering, free-of-charge, their wonderful WebMATH website http://webmath.com resources to anyone wishing to access them; and,
2. The Rehabilitation Engineering Research Center for Wireless Technologies (Wireless RERC), sponsored by the National Institute on Disability and Rehabilitation Research (NIDRR) of the U.S. Department of Education (under grant number H133E110002) for supporting IDEAL Group's and Apps4Android’s efforts to make standard educational websites accessible, usable, and useful to all students… including students with a wide range of print disabilities!
This mobile browser is limited to accessing the following functions of Discovery Education's® WebMATH website http://webmath.com resources:
* Involving Exponents/Powers
* Involving Products of Terms
* Involving Like Terms
* Simplify any Expression
* Raise to a Power
* Complete the Square
* Greatest Common Factor
* Difference between Two Squares
Solving Linear Equations
* Involving One Variable
* Involving Two Variables
* Find Numerical Solution
Solving Quadratic Equations
* By Factoring
* Using the Quadratic Formula
* Simplify Square Root term
* Simplify Any Root Term
* Calculate Power of i
* Add Two Numbers
* Subtract Two Numbers
* Multiply Two Numbers
* Perform any Operation
* Solve an Inequality
* Plot an Inequality
Word Problems (Percents)
* X is Y% of what number?
* X is what percent of Y?
* What percent of X is Y?
* What is X% of Y?
* What percentage difference is the number X from the number Y?
IDEAL Web Math Algebra is a free software application from the Teaching & Training Tools subcategory, part of the Education category.
The app is currently available in English and it was last updated on 2015-04-13. The program can be installed on Android.
IDEAL Web Math Algebra (version 3.6) is available for download from our website.
Just click the green Download button above to start. Until now the program was downloaded 10 times.
We already checked that the download link to be safe, however for your own protection we recommend that you scan the downloaded software with your antivirus.


For more than 300 years, this simple math problem has confounded mathematicians worldwide. And now Andrew Wiles has won $720,000 for solving the equation.
Known as Fermat’s Last Theorem, it seems simple enough = xⁿ + yⁿ = zⁿ but the equation has no solutions if ⁿ>3. Yet the equation has confounded the world until Wiles came along.
His work earned him the Abel Award, often referred to as the Nobel Prize of Math.
According to Wikipedia:
In number theory, Fermat’s Last Theorem (sometimes called Fermat’s conjecture, especially in older texts) states that no three positive integers a, b, and c satisfy the equation an + bn = cn for any integer value of n strictly greater than two. The cases n = 1 and n = 2 have been known to have infinitely many solutions since antiquity.
This theorem was first conjectured by Pierre de Fermat in 1637 in the margin of a copy of Arithmetica where he claimed he had a proof that was too large to fit in the margin. The first successful proof was released in 1994 by Andrew Wiles, and formally published in 1995, after 358 years of effort by mathematicians. The unsolved problem stimulated the development of algebraic number theory in the 19th century and the proof of the modularity theorem in the 20th century. It is among the most notable theorems in the history of mathematics and prior to its proof, it was in the Guinness Book of World Records as the “most difficult mathematical problem”, one of the reasons being that it has the largest number of unsuccessful proofs.


April is national “Math Awareness Month.” To celebrate and engage our students and community around real-life Math Applications, the Thurston County Chamber Education Committee is promoting our 10th annual “Math for Life” event for students in Griffin, Olympia, North Thurston, Tumwater, and Yelm school districts. Last year we had over 1,000 students participate in this event!
Mark your calendar for Math for Life 2020, March 28 – April 12.
Why Businesses Participate
“I’ve been doing Math for Life from the beginning because:
- It’s great fun!
- It really helps the kids understand that ‘Math is a life skill – not just an academic subject.”
- It’s GREAT for business: Many parents ‘discover’ Cabinets by Trivonna. They come back when they need a new Kitchen”
-Ross Irwin, Cabinets by Trivonna.


My mom’s a PHD physicist. My dad, a PHD engineer. By the time I was 13 they’d both given up on any dreams of me being a math genius and instead hoped I’d finally count to 20 without removing my shoes.
So, when I click ‘publish’ for this post, I’m going to flinch a little, waiting for someone who’s actually math-competent to call me out as the fraud that I am. But I’m writing this anyway, partly because this is analytics 101. If you work in marketing, you need to know it.
What’s a Rolling Average?
A simple rolling average (also called a moving average, if you wanted to know) is the unweighted mean of the last n values.
My first reaction when I read a definition like that was, “Buh?”. Maybe it made sense to you, but to me it’s total mathinese.
Here’s my definition of a simple rolling average: An average of the last n values in a data set, applied row-by-row, so that you get a series of averages.
OK, try this example. The column on the right is the rolling average:
See how that works? I’m just taking the average of the last 7 rows, all the way down the column. That’s a simple rolling average.
And trust me, I stop at ‘simple’. If you want to learn more complex rolling averages, read the Wikipedia page.
Why Use a Rolling Average?
A rolling average can help you find trends that would otherwise be hard to detect. Using the data from above, you get a graph that looks like this:
That’s not terribly helpful as a trend detector. It looks like my website got a case of the hiccups.
Use a rolling average, though, and you start to see a pattern emerge, with peaks happening more and more often:
That’s why rolling averages are so useful: Apply them at the right time and you can get an idea of emerging trends, even if those trends are happening because of sudden jumps in your data.
I’ll stop there. Math-competent folk, feel free to leave endless comments about how I just mangled your favorite concept…