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All Sites - 1822 items found, showing 1301 to 1350
 Portion Distortion - National Institutes of Health (NIH) How do the portions served in today's fast food restaurants compare to those available 20 years ago? Take the "Portion Distortion" quizzes to learn exactly how much portions have "super sized," as well as the amount of physical activity required to burn ...more>> The post-IMO97 web page - Olimpíada Matemática Argentina Problems and results from the math olympics held in Argentina in July, 1997. Available in English and Spanish, with problems also in French, Russian, German, and a host of other languages. ...more>> Power Cards: A Mathematical Puzzle - Cynthia Lanius Choose a number from 1-31. Tell me which cards below contain the number, and I can tell you the number. How do I do it? (A hint and directions for making more cards are given.) ...more>> Powers of 5 and Traveling to the North Pole (Math Chat) - Frank Morgan; Christian Science Monitor What is the remainder when you divide 5^999,000 by 7? ...more>> PQRST Puzzle Competition - Cihan Altay PQRST is a quarterly online puzzle competition open to all, with competitions in January, April, July and October. Download the test as PDF, then solve and rate the puzzles within seven days. The PQRST site highlights top competitiors and puzzles receiving ...more>> Practice "Maths" Perfect: Online Maths Quiz For Young Children / Students - PMP Online Tech This is a simple but interactive maths quiz for young children or students aged 4 to 8 (requires a small membership fee). Based on the Singapore Mathematics methods. ...more>> The Practice of Statistics - Yates, Moore & Starnes; W. H. Freeman & Co. A free resource for students and instructors using the statistics textbook The Practice of Statistics. Take online quizzes for each chapter; read EESEE (Encyclopedia of Statistical Examples and Exercises) case studies ranging from "Is Old Faithful Faithful?" ...more>> Praktick - Praktick Learning private Ltd. Auto-scoring practice problems aligned to the UK's Central Board of Secondary Education (CBSE) Standards, from pre-kindergarten to grade seven. Questions adjust dynamically based on performance, while a timer counts up response time; incorrect answers ...more>> Pre-Algebra Problem of the Week - Math Forum Math problems for students learning algebraic reasoning, identifying and applying patterns, ratio and proportion, and geometric ideas such as similarity. The goal is to challenge students with non-routine problems and encourage them to put their solutions ...more>> Pre-Calc/Calculus (Math for Morons Like Us) - ThinkQuest 1998 Lists of important concepts, a quick reference sheet with key calculus formulas, and a calculus message board. ...more>> Pre-Calculus: A Teacher Quality Grant Project - State of Texas, Texas Higher Education Coordinating Board A precalculus "course-in-a-box" for all teachers, particularly those new to teaching precalculus under the guidelines of the Texas Essential Knowledge & Skills (TEKS). It includes content information, activity sheets, videos of best teaching practices, ...more>> The Precalculus Page Lesson plans and staff development activities with a problem-solving approach to precalculus, with materials on logarithms, the binomial theorem, and the law of sines, and problems (without answers) on algebra, exponential and logarithmic functions, other ...more>> PreCalculus Problem of the Week - Math Forum Math problems for students who had finished studying topics commonly covered in first-year algebra and high school geometry. From 2002 to 2003, problems involved probability, statistics, discrete math, and trigonometry. The goal was to challenge students ...more>> The Precalculus Weblet - Dynamic Educational Materials A partially online precalculus course with the following centers: Instruction (extending the instructional opportunities beyond the textbook; see Explore the Concepts and Starred Exercises), Reference (technology, glossary, history, sites that complement ...more>> PrimaryMath - David Dee Paperless arithmetic learning for school and home. Create lessons composed of interactive problems in addition, subtraction, multiplication and division (including long division) with optional decimals and signed numbers. ...more>> Prime-Numbers.net - John Barth Answers to commonly asked questions about primality: What are prime numbers? What are composite numbers? How do I find prime numbers? What are some types of prime numbers? What is the biggest prime number? Other resources include original worksheets available ...more>> The Prime Puzzles & Problems Connection - Carlos B. Rivera An anthology of the most interesting problems and puzzles explicitly related to prime numbers. Organized into: Records (to convert you into a "prime hunter" - you'll discover that all you need to top a record is a PC, a good code, and a certain amount ...more>> The Prime Puzzles & Problems Connection - Carlos Rivera Problems and puzzles having to do with prime numbers. A new puzzle is posted each Saturday morning. Also links to related Web pages, and a short bibliography. ...more>> Principles of Calculus Modeling, an Interactive Approach - Donald Kreider and Dwight Lahr, Department of Mathematics, Dartmouth College Web pages that correspond to each section of the book Principles of Calculus Modeling: Modeling Discrete Data; Modeling Rates of Change; Modeling with Differential Equations; Modeling Accumulations; and Culminating Experience. With quizzes, applets, worked ...more>> Printable Math Worksheets - Homework for Kids Practice worksheets, most with randomly generated problems, on the following topics: learning numbers, addition and subtraction, multiplication and division, fractions, decimals, time, measurements, perimeter, area and volume, integers, set theory, equations, ...more>> Printable Math Worksheets - TestDesigner.com Free printable math worksheets, with answer keys, on number concepts, measurement, geometry, algebra, and statistics. Customize your own tests by selecting from the growing database of questions -- or create your own. ...more>> The Prisoner Problem - Anne Arundel Community College A classic logic problem about three prisoners, each of whom tries to determine what color his own hat is in order to be set free. ...more>> The Prisoners' Dilemma - F. Heylighen, Principia Cybernetica Web Cooperation in game theory: the principle of suboptimization. A game that has been and continues to be studied by people in a variety of disciplines, ranging from biology through sociology and public policy. It is a "non-zero-sum" game: the best strategy ...more>> Prisoners' Dilemma - Wayne Davis An interactive game simulation inspired by Prisoners' Dilemma game theory as described in the book The Selfish Gene by Richard Dawkins. The payoff is a reduction in prison sentencing of very good, fairly good, fairly bad or very bad, which is translated ...more>> Probability - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny A short essay on probability theory, with links to some well-known problems: Monty Hall Dilemma; Three pancakes problem; Lewis Carroll's problem; Bertrand's Paradox; Bear cubs problem; Misuse and Misconception of Statistics; Pauling's joke; Probability ...more>> Probability of Getting Doughnuts - NASA Lewis Learning Technologies Project A box of doughnuts contains 4 glazed, 3 cream-filled, and 2 jelly doughnuts. What is the probability of getting a cream-filled doughnut, eating it, and then getting a glazed doughnut? A detailed answer is provided. From NASA's 9th Grade Math Proficiency ...more>> Probability: Rolling Dice - NASA Lewis Learning Technologies Project Probability: If a die is rolled 18 times, how many times is the number 2 expected to come up? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>> Problemas y Ecuaciones Ecuaciones y problemas resueltos de matemáticas para secundaria: fracciones equivalentes, fracción irreductible, potencias, ecuaciones de primer y segundo grado, sistemas de ecuaciones, teorema de Pitágoras, progresiones y ecuaciones ...more>> Problem at the Art Gallery - Ivars Peterson (MathLand) The Crystal Art Gallery was being readied for its grand opening, and I had to figure out how many guards were needed to make sure that every wall of paintings was under scrutiny. I was also ordered to keep costs as low as possible. The trouble was that ...more>> Problem-Attic - EducAide Software Thousands of questions from New York State Regents exams, the National Assessment of Educational Progress (NAEP), the Trends in International Mathematics and Science Study (TIMSS), academic competitions, and other test banks. Sign up for a free account ...more>> Problem Corner - Les Reid; Southwest Missouri State University (SMSU) High School, Advanced, and Challenge problems, updated monthly (approximately). High School: solutions are not solicited, although feedback (generalizations, suggestions for future problems, etc.) is appreciated. Each month, the solution to the previous ...more>> The Problem of Points - Isaac Reed An age-old gambling problem led to the development of probability by French mathematicians Pascal and Fermat in the 17th century. ...more>> Problem of the Month - Grovedale Secondary College, Grovedale, Victoria, Australia Elementary level problems posted monthly for local elementary school students. Examples include: Sums of square numbers; Trial and error spacial arrangement problem; Sums of whole numbers; Jokes/Riddles in code; Order of operations using number cards; ...more>> Problem of the Week - Alberto L. Delgado, Bradley University, Peoria, IL College-level problems, posted weekly for the current semester, with archives of problems and solutions starting in spring 1997, for number theory, combinatorics, probability, calculus, etc. ...more>> Problem-of-the-Week - David Poole; Department of Mathematics, Trent University, Canada Most of these problems can be done using only high school mathematics and logical reasoning. Eight problems with solutions and one without, from the fall of 1997, at Trent University, Canada. An email contact is listed, for those outside the university ...more>> Problem of the Week - Dr. Annalisa Crannell; Franklin & Marshall College Puzzles to solve in number theory, geometry, probability, cryptography, and the like. See problems from 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, and 1997. ...more>> Problem of the Week - Duc Huynh A new math problem each week, with an archive of past problems. ...more>> Problem of the Week - Purdue University A panel in the Mathematics Department publishes a challenging problem once a week and invites college and pre-college students, faculty, and staff to submit solutions. Solutions are due within two weeks from the date of publication and should be sent ...more>> Problem of the Week - Richard Mann A new word problem, math challenge, or other puzzle posted each week since November, 2008, by a Saint Ann's School teacher, with student acknowledgements to follow. ...more>> Problem of the Week - Steven Locke; Dept. of Mathematical Sciences, Florida Atlantic University Problems in set theory, sequences, and series, with archives dating back to November, 2003. Locke offers a reward for the FAU student who submits the best solutions. ...more>> Problem of the Week - U.S. Military Academy A current college-level Problem of the Week, with links to past problems and solutions, a project of the Pi Mu Episilon chapter of the United States Military Academy. MathCad or Word are needed to view past problems and solutions. ...more>> Problem Pictures - Richard Phillips A CD-ROM of 184 attractive, unusual, or puzzling color photographs accompanied by activities for mathematics teaching. Images may defy explanation, motivate investigation, or inspire the viewer to answer a question. Other pictures may be the starting ...more>> Problem Problems - Michael Pershan Blog by a New York City math teacher trying "to better understand the connections between problem solving, learning, and teaching." Posts, which date back to May, 2015, have included "Getting Stuck on a Geometry Problem," "Minimalistic Hints Are Still ...more>> Problems and solutions of the UIUC Undergraduate Math Contest - University of Illinois at Urbana Champaign A locally organized problems contest, held in the latter part of the spring semester. It is similar in format and content to the Putnam competition, but the problems are easier. Results, winners, and contest problems since 1996 are on the Web. ...more>> Problems - Bojan Mohar Conjectures in graph theory ranging from paths to colorings to matchings to crossings. With references, links to other collections of open problems, and chapters of the book that Mohar authored with Carsten Thomassen, Graphs on Surfaces. ...more>> Problem Sets for Honors Multivariate Calculus - Stephen B. Maurer; Dept. of Mathematics & Statistics, Swarthmore College This series of multivariate calculus problem sets supplements and is drawn from texts such as C. H. Edwards, Jr.'s Calculus of Vector Functions and Buck's Advanced Calculus. Problems include Change of Variable in Limits, Matrix Norms and Quadratic Forms, ...more>> Problems in Topological Graph Theory - Dan Archdeacon An ongoing list of open questions in topological graph theory, to which the author invites contributions. Classical questions on genus; coloring graphs and maps; drawings and crossings; paths, cycles, and matchings; symmetries; locally planar embeddings; ...more>> The Problem Site - Douglas Twitchell Math puzzles, brainteasers, strategy games, web quizzes, and informational pages. Flash-powered math games include Adders, Zap (slide tiles to move digits and add up to a specified sum), Side By Side (number re-arrangement), One To Ten (given four numbers, ...more>> Problem Solving Strategies - Finlay McQuade, Boğaziçi University (Turkey) Strategies for solving problems, each illustrated with sample math challenges and worked solutions: draw a diagram; make a list; guess and check; divide and conquer; look for a pattern; start at the end. Also available in Turkish. ...more>> Procon Technology - Maths Tips and Tricks - Peter King Math tricks, divisibility rules, and mental math tricks, many from a book by Kjartan Poskitt called Numbers - the key to the universe, one of the books in the Murderous Maths series published by Scholastic. ...more>>
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