 PAT Online: Reports from the Practical Algebra Tutor Project  PACT Center, Carnegie Mellon University
An intelligent tutoring system, a sort of modified spreadsheet system, based on a theory of cognition developed by John Anderson and the NCTM standards. Try it out online, or: read articles about education, technology, and computer science; explore background
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 Pattern Based Reason  Alan Selby
This book surveys rule and pattern based thought in daily life, society, science and technology. The first chapters show how reliable implication rules can be employed one at a time or one after another to arrive at conclusions. The middle chapters describe
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 PBS Teachers: Math  PBS Teachers
The Public Broadcasting System's Math Service, combining computing and telecommunications technologies to offer interactive data services and interactive video and voice services for education based on the NCTM Standards. The site features: resources,
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 PC Calc
Calculator program for Windows 2000/XP. Offers calculations, graphing, matrices, steps in solving equations, and more. Features listed and a free 30day demo is available on the site.
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 PCTM Online Puzzle of the Week  Judy Brown; Pennsylvania Council of Teachers of Mathematics
Weekly illustrated math puzzle online competition from 199697, with an archive of past puzzles. Since 1997 this project has moved to the Math Forum to become its Middle School Problem of the Week.
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 Pearson Math Stats  Pearson Learning
Pearson Learning brings you free activities for students to use with WolframAlpha. The questions teach input and command syntax or reinforce answer interpretation or the concepts of intermediate algebra.
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 Personal Algebra Tutor (PAT)  CyberEd, Inc.
An algebra problem solving program for high school and college algebra. Students can enter a wide variety of algebra problems and PAT will solve them stepbystep, with detailed explanations. PAT solves, simplifies, graphs, etc. Solutions with sidebyside
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 Personalized Programming Service Inc.
Educational software for teachers and students. Topical software in Math, English, Social Studies, and Science, as well as Quizmaker and Testmaker programs. Download demos and upgrades, browse the products, or order on site.
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 Personal Tutor  Memory Banks Pty. Ltd., Australia
Maths and science software designed to complement the secondary school math syllabus. A comprehensive learning system usually used by students and schools as a supplement and aid to coursework, but thorough enough that it can be used by individuals without
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 Peter Ash's Thoughts on Math and Education  Peter Ash
Musings on doing and teaching mathematics, book reviews, and math problems both elementary and advanced from the creator of Cambridge Math Learning. Blog posts, which date back to August of 2007, include "Very Proper Fractions"; "Physical Models for NonEuclidean
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 Petran Mathematics  Petro Greffrath
From South Africa: grade 11 and 12 math problems, tests, and answers. Teachers may register their students (R360/year for 110 students; the Petran academic year starts 1st February and ends 31st January the following year). Includes access to an EnglishAfrikaans
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 PhotoMath  microblink
"Smart camera calculator" apps that use a cell phone's builtin camera to read mathematical expressions in real time, then output stepbystep solutions.
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 Physics and Math Help Online  Bryan Gmyrek
Tutoring available through email. Previously answered questions are archived on the site, and a tutorial on The Plank Radiation Law  Blackbody Spectrum is available. The author also provides a physics help newsletter and a list of sites for further
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 Physics Forums
Discussions emphasize physics, but "PF" also includes an entire directory on mathematics: General Math; Calculus & Analysis; Differential Equations; Linear & Abstract Algebra; Topology & Geometry; Set Theory, Logic, Probability, and Statistics;
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 The Pixel Calculator  METIP (Mathematics Experiences Through Image Processing) Project
The Pixel Calculator is intended primarily for use by students of ages 1217 in a variety of enrichment activities involving mathematics and digital image processing. It provides a good introduction for students to digital images by allowing students
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 PlaneMath  InfoUse, in cooperation with NASA
Materials for elementary school students about math and aeronautics, designed to stimulate and motivate students with physical disabilities in grades 47 to pursue aeronauticsrelated careers via the development and delivery of accessible math education
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 Poliplus Software
Educational computer algebra, geometry, trigonometry, calculus software for Windows and Macintosh, and Java. Formulae 1 (F1) is a computer algebra system designed for the teaching and exploration of Mathematics. EqnViewer is a Java applet that allows
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 Polymath Love  Gary Smith
Free and lowcost Macintosh software for middle school mathematics: over
200 programs written by a classroom teacher. Program descriptions and some free programs are available to download from the Web, or order the CDROM for $100 U.S., which includes
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 Pop Clock  Susan Boone
A lesson on data collection, problem solving, research skills, interpolation of data. Students review the Census Bureau's home page on the Internet and gather data regarding trends in population. They study these data and make predictions of future populations,
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 Positive/Negative Integer Rules  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about positive and negative integer rules, such as "When do two negative numbers equal a positive?"
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 The postIMO97 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.
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 Potent Problems  Institute for Studies in Educational Mathematics
A database of problems that deepen understanding of mathematics through multiple answers, approaches to an answer, interpretations, extensions, perspectives on a mathematical idea, layers of complexity, or algorithms. Potent problem content topics include
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 PowerMath: the Virtual Reality Mathematics Teacher  Alexandre Menezes, PowerClassroom Software, LLC
Modular, studentcentered instruction software for Windows, based on visualization of mathematical ideas. Available in licenses from one to unlimited users. Demo CD available. Pricing and topics listed on web site.
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 PowerPoint Tools  Don Link
Don Link, a sixth grade math teacher at Indian Creek School (Crownsville, Maryland), shares these PowerPoint files that he has developed and used with his students. Includes: A Geometric Proof of the Pythagorean Theorem; Exponents; Jeopardy Template;
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 Praktick  Praktick Learning private Ltd.
Autoscoring practice problems aligned to the UK's Central Board of Secondary Education (CBSE) Standards, from prekindergarten to grade seven. Questions adjust dynamically based on performance, while a timer counts up response time; incorrect answers
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 PreAlgebra (Middle School Math)  Homeworkhelp.com, Inc.
Free prealgebra lessons on: types of numbers (numbers and their properties, negative numbers); fractions (reducing, multiplying, dividing, adding and subtracting, mixed numbers, comparing fractions, ratios & proportions, percentages, decimals, scientific
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 PreAlgebra 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 nonroutine problems and encourage them to put their solutions
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 PreCalculus: A Teacher Quality Grant Project  State of Texas, Texas Higher Education Coordinating Board
A precalculus "courseinabox" 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,
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 The Precalculus Page
Lesson plans and staff development activities with a problemsolving 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
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 PreCalculus Problem of the Week  Math Forum
Math problems for students who had finished studying topics commonly covered in firstyear algebra and high school geometry. From 2002 to 2003, problems involved probability, statistics, discrete math, and trigonometry. The goal was to challenge students
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 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,
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 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.
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 Printables: Student Handouts  The Learning Network
PDF format printable handouts. Browse by grade or subject; check out the featured handouts; or search for a topic of your choice. Other resources also available through the Lesson Planning Center links on the site.
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 PRISMNEO: Programming Remediation and Intervention for Students in Mathematics  Near North School District, Ontario, Canada
Handson Geometer's Sketchpad manipulativesplus "some things that cannot be done by hand!" The GSP files, as well as some QuickTime movies, are organized into Grade 7, Grade 8, and Grade 9 under the following topics: area, central tendency, equations,
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 Problems of the Week  Math Forum @ Drexel
Our goal with the Problems of the Week is to engage students in nonroutine, constructedresponse mathematics investigations that integrate writing with problem solving in the math classroom. In addition to the Current PoWs and the Problems of the Week
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 Problem Solving in Mathematics  Jim Wilson; Univ. of Georgia
Problems in algebra, geometry, conversion, cryptarithm, "mean," trigonometry, and a mixture of all, many with comments and solutions, from a course given in the Dept. of Mathematics Education at the University of Georgia. The site also provides links
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 Problems with a Point  Education Development Center, Inc. (EDC)
A collection of problems designed to help students in grades 612 learn new mathematical ideas by building on old ones. Varying in difficulty and approaches, these problems are useful for teachers, students, parents, math clubs, homeschoolers, and others.
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 The Problem with Algebraic Models of Marriage Structure  James M. Cargal; The Math Forum
Algebraic models of marriage systems have been in use for nearly fifty years. These models continue to be a matter of controversy. Most anthropologists have found algebraic models abstract and unnecessary. Mathematical scientists have tended to consider
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 Productive Struggle
Group blog, with most contributions by secondary math and science teachers, that aims to "push teachers to learn in the same way that we push our students to learn" and "work together to make our struggles productive." Posts, which date back to March,
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 Professional Homework Help
Solutions to your mathematics and statistics homework problems. Request a free quote.
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 Professor B  Professor B Enterprises, Inc.
Arithmetic CDs, algebra books, and other products and services that aim to structure math ".. so it becomes as connected and flowing as a story."
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 Professor Geek  Jardel de Paula Pereira
Blog educacional com atividades, vestibulares, simulados, jogos, dicas para estudantes, e mais. Antigamente conhecido como Aprendaki.tk.
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 The Professor in a Syllabus: Elementary Algebra  Vision Alpha Products
Selfinstructional elementary algebra and arithmetic. Learn at your own pace from dozens of brief, animated, independent, selfteaching modules. Watch videos of TPIAS in action for distance learning, and its demo, before subscribing. Also available at
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 Professor Weissman's Software  Martin Weissman
Stepbystep algebra and precalculus tutorial software for Windows 95/98/NT. For all ages, middle school through college, useful for homeschoolers and as a math refresher. Downloads and upgrades are available online.
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 Prof. McFarland's Help Center for Mathematics Students  Thomas McFarland, Department of Mathematical and Computer Sciences, University of Wisconsin System
McFarland's handouts for courses such as Finite Mathematics, Basic Algebra, Calculus, and The Logic of Chess. Interactive (JavaScript) selftests or explorations cover integer and fractional exponents; factoring; reducing, adding, multiplying, and dividing
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 ProjectBased Instruction in Mathematics for the Liberal Arts  M. B. Ulmer; University of South Carolina at Spartanburg
Information and activities/projects for a complete projectbased postalgebra course for liberal arts majors, also suitable for use with high school courses following algebra. Activities are in PDF format.
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 Project Based Learning Pathways  David Graser
A blog about real life projects suitable for college math courses such as algebra, finite math, and business calculus. Most of these applied math projects include handouts, videos, and other resources for students, as well as a project letter. Graser,
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 Project Poison Applet  Computer Science Dept., Trinity College Dublin
A site created by firstyear computer science students as a Java programming project. Each of 12 topics (Algebra; Geometry; Trigonometry; Calculus; Matrices; Sequences & Series; Complex Numbers; Vectors; Probability; Groups; Further Calculus; Further
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 Projet Folium
Folium est un ensemble organisé d'articles sur les mathématiques, du cours aux biographies de mathématiciens célèbres, en passant par les exos les plus classiques et les théorèmes les plus puissants. Articles
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 ProTeacher  ProTeacher
A teachercreated resource site for elementary schoolteachers, offering lessons and materials, education news, links for finding schools, news and weather, and a reference desk. An index of links to information on various academic subjects includes Mathematics
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