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  All Sites - 4607 items found, showing 3551 to 3600

  1. Pythagorean Theorem Proofs - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about proofs of the Pythagorean Theorem, such as "Do you know the exact number of proofs of the Pythagorean Theorem in existence?" and "Why doesn't the Pythagorean theorem work for triangles other than right triangles?" ...more>>

  2. Pythagorean Theorem - Warren F. Davis, Davis Associates, Inc.
    An animated, non-mathematical, annotated proof of the Pythagorean Theorem, assumed to be the method of proof actually used by Pythagoras circa 550 BCE (see the Bronowski reference). ...more>>

  3. Pythagorean Triples - Math Forum, Ask Dr. Math FAQ
    What is a Pythagorean triple? What do Pythagorean triples have to do with Fermat's Last Theorem? ...more>>

  4. Pythia Equation Solver - Pablo Perna
    The site contains equations for which the user can solve automatically any unknown given the known parameters. Geometry equations include areas of triangles and circles, and surface area and volume for various 3D shapes. Equations also include electronics ...more>>

  5. QAMA - QAMA, LLC
    "The calculator that thinks only if you think, too," QAMA requires the operator to first enter a reasonable estimate. QAMA encourages rounding and rapid back-of-the-envelope reckoning, but does not tolerate errors of magnitude or sign, or of basic operations ...more>>

  6. Quadramania - CleverMedia
    Use tiles of different shapes to form rectangles and earn points -- ten times the square of the total number of tiles in the rectangle. Requires the Flash plug-in. ...more>>

  7. Quadratic, Cubic, and Quartic Equations - MacTutor Math History Archives
    Linked article describing the progress made on these equations from the Babylonians through Leibniz in 1673, with another Web site and 12 references. ...more>>

  8. Quadratic Formula - Jim Loy
    The normal derivation of the quadratic formula (completing the square), and another using a pair of factors, finding all possible factors with whole numbered terms... ...more>>

  9. Quadrilateral Classification - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about how to classify quadrilaterals, such as "Are squares rectangles? Are rectangles squares? ...more>>

  10. Quadrilateral Formulas (Ask Dr. Math FAQ) - Math Forum
    Formulas for finding the area, perimeter, etc. of a quadrilateral: square, rectangle, parallelogram, rhombus, trapezoid, trapezium, kite, and cyclic quadrilateral. ...more>>

  11. Quandaries and Queries (Math Central) - Dept. of Mathematics and Statistics, University of Regina, Saskatchewan, Canada
    A math Question and Answer area for K-12 students and teachers, with searchable archives of past questions and answers. ...more>>

  12. The Quantile Framework for Mathematics - MetaMetrics, Inc.
    The Quantile Framework measures a student's mathematical achievement and concept/application solvability on the same scale, enabling educators to use Quantile measures to monitor a student's development in math and forecast performance on end-of-year ...more>>

  13. Quantitative and Qualitative Research Supporting Prentice Hall Mathematics Programs - Pearson Education, Inc.
    Download PDFs: the Research Summary of Prentice Hall Mathematics programs; Quantitative Research on 1999 Course 1, Algebra LVR, 2000 Pre-Algebra Research Summary, and 1999 Middle School Math; Qualitative Research on Unique Progress and on Reading and ...more>>

  14. QuantumBrainBenders - Joel Klebanoff
    A series of puzzles: find a series of numbers in a grid that add to the given sum. A new puzzle for each of three skill levels is posted daily. The site also includes an archive of previous puzzles. ...more>>

  15. The Quarter Mile Math Programs - Barnum Software
    Math practice software for reinforcement, remediation, and review. The programs pose problems to answer as fast as possible in self-competition with the five previous best times, simultaneously replayed on screen as a straight-line race of dragsters or ...more>>

  16. QuasiTiler (Gallery of Interactive Geometry) - Eugenio Durand; The Geometry Center
    Generate Penrose tilings or design your own nonperiodic tilings of the plane with this interactive application. In the process, you can select and visualize plane cross-sections of a lattice in anywhere from 3 up to 13 dimensions. Geometry of Quasicrystals ...more>>

  17. Query Interface to the Contents of the Mathematics Archives - University of Tennessee, Knoxville (UTK)
    Search software, abstracts and reviews; teaching materials, etc. by keyword. ...more>>

  18. QueryTree - D4 Software Ltd
    Drag and drop this free tool to explore, analyze, and visualize data — without special code, formulas, or even software: QueryTree queries tabular information within your web browser. ...more>>

  19. Qu'est-ce qu'un nombre? E-doc Mathématiques - Service du Film de Recherche Scientifique (SFRS)
    Site basé sur le livre de S. Houzel, qui retrace l'histoire du nombre depuis l'Antiquité. In French. Site based on the book by S. Houzel, retracing the history numbers. ...more>>

  20. Quia! - The Learning Group
    Create your own Java-enabled quizzes, home pages, and learning games to play over the Internet: enter your material into a form, select a few options, and press a button. Games have been created and are available for browsing in mathematics, as well as: ...more>>

  21. Quick Conversion - David Giordano
    A shareware tool for Win95/98/ME/NT4/2000/XP that converts several units of length, weight and capacity. Free trial version available for download. ...more>>

  22. QuickMath
    A site for answering common algebra questions automatically: users enter their e-mail address and a mathematical expression, and decide whether they wish to expand, factorize, or simplify that expression. The answer is computed automatically and returned ...more>>

  23. Quilt Block Patterns - Hester Butler-Ehle
    Links to a variety of quilt block patterns (four-patch, five-patch, nine-patch, and more). Several are suitable for replication using pattern blocks. ...more>>

  24. Quilt Design Program Mini-Reviews - Robert G. Holland, The Virtual Quilt Company
    A brief review of several quilt design programs. Links permit you to download a demo version of some programs. Quilt-Pro is the Windows-based program of choice. ...more>>

  25. Quilts for all Seasons - Mary Murnighan
    Quilts made in the classroom can illustrate basic concepts, including a multiplication table and square root quilt, shown. ...more>>

  26. Quite BASIC - Nikko Strom
    A JavaScript environment for coding in the classic BASIC programming language. Math projects include the Fibonacci Sequence, Fibonacci Squares, the Sieve of Eratosthenes, and Mandelbrot; puzzles include the Towers of Hanoi and variations of the Eight ...more>>

  27. Quiz Me - D. Kell and Mercer County Community College
    Interactive quizzes constructed using software provided by Addison Wesley Longman Publishers. Auto-scoring, multiple choice self-tests on whole numbers (place value, operations, applications, rounding, roots and order of operations); fractions (equivalencies, ...more>>

  28. QuizStar - Advanced Learning Technologies, Center for Research on Learning at The University of Kansas
    Create online quizzes and organize the results. Features include the ability to attach multimedia files to questions, to make quizzes in multiple languages, and more. ...more>>

  29. The Quotations Page - Michael & Laura Moncur
    A searchable collection of resources and information relating to quotations. Quotes of the Day; Quotes of the Week; Motivational Quotes of the Day; Random Quotes; Search; Links - a listing of other useful resources related to quotations. You are invited ...more>>

  30. Qwizdom
    Qwizdom's wireless handheld technologies and student response system let teachers instantly assess students' comprehension and identify their misconceptions and errors, in parallel, without having to facilitate multiple voices or single out "quiet" students. ...more>>

  31. Radical Constructivism - Alex Riegler, Ed.
    People, organizations, and online papers that deal with radical, epistemological, psychological and educational constructivism and second order cybernetics. Includes general introductions, online books and papers, links, conferences, and a URL submission ...more>>

  32. Radical Math
    A site for integrating issues of social justice into the classroom. Contribute your own resources, search them by keyword, or browse by math topic, title, or types such as lesson plans, article, charts, graphs, data sets, maps, books, websites, and more. ...more>>

  33. Radius and Diameter - NASA Lewis Learning Technologies Project
    Mr. Jordan wants to put up a fence all the way across the middle of his round vegetable garden. If the radius of the garden is 3 feet, how many feet of fencing will Mr. Jordan need to buy? A detailed answer is provided. From NASA's 9th Grade Math Proficiency ...more>>

  34. Rainforest Realities - Furlano, Nelson, Rakes, Willis; Braceville Elementary School, Braceville, Illinois
    A project for third and sixth graders, involving Internet research, data collection, and conservation efforts on behalf of the Brazilian rainforest. Site includes a summary of the project, scenario, sample student projects, and Internet reference links. ...more>>

  35. Raise Smart Kids - Inna Shapiro
    Download Powerpoint presentations of math problems, with answers: logic, basic arithmetic operations, natural numbers, pigeonhole principle, fractions, pouring, cutting, weighing, divisibility, and more. For Croatian translations of some of Shapiro's ...more>>

  36. Ralph A. Raimi Homepage - Ralph A. Raimi
    The University of Rochester Professor Emeritus' notes on math education and non-technical writings with a mathematics theme include Whatever became of the New Math?; Have we forgotten the value of memory?, a comment on the New York Regents' B-examination ...more>>

  37. Rama Math Help - Marty Schultz
    Pages to help people solve the alien number machines in the Sierra game Rama, with a lesson in base 8 and 16 (and 10) and base conversions, useful for others, too. Includes a review of base 10 and an overview of bases 8 and 16. There is also a link to ...more>>

  38. RAND Education - RAND Corporation
    A division of the RAND Corporation, RAND Education is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. In particular, see the RAND Mathematics Study Panel (RSMP), part of its Achievement for All research ...more>>

  39. Random (Blog) - Neil Bickford
    Bickford writes "about mathematics, cellular automata, programming, Rube Goldberg Machines, and overall randomness." Posts of the self-described "mathematician/programmer/scientist," dating back to May, 2009 -- when Bickford was 11 years old -- have included ...more>>

  40. Randomise Me - Better Data Limited
    This platform for running trials randomizes participants and asks them the questions you choose at pre-specified dates or times. As study subjects report their outcomes, Randomise Me measures the difference between the two groups, and calculates the statistical ...more>>

  41. RapidCalculator - ProAlgorithms.com
    This mobile computing platform for web and handheld devices performs matrix operations like multiplication/inverses; plots graphs of functions and operations on polynomials; manipulates complex numbers; and evaluates other math, science, and engineering ...more>>

  42. The Rappin' Mathematician - Alex Kajitani
    The Rappin' Mathematician provides teachers and students with rap songs about math. Two CDs available separately or together; samples and testimonials available free on the site. ...more>>

  43. Ratio and Proportion - NASA Lewis Learning Technologies Project
    If the ratio of boys to girls is 5 to 8 and there are 40 girls, which proportion should you use to find out the number of boys? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  44. Ratio - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about ratios, such as the difference between "rate" and "ratio" and "fraction"; "On a map, the scale states that 3 inches represent 125 miles...."; and "How can I write a ratio in three different ways?" ...more>>

  45. Ratio, Percent & Proportions (SMILE) - Rosalyn Winston, Walt Disney Magnet School
    A lesson on fractions as percents, designed to teach 7th graders to find the percent of a number; find percents using proportions; calculate the weight of objects (beads) in grams given specific percents; and verify the weight of objects (beads) on a ...more>>

  46. Raw - DensityDesign Lab
    The "missing link between spreadsheets and vector graphics," this open web app's interface lets you create custom vector-based visualizations on top of the Data-Driven Documents JavaScript (D3.js) library. Starting with delimiter-separated values in plain-text ...more>>

  47. Reading a Protractor or a Ruler - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about reading a protractor or a ruler, such as "What do the little lines on a ruler stand for?" ...more>>

  48. Readings and Poetry Selections for Mathematics in Poetry - JoAnne Growney, Bloomsburg Univ., Bloomsburg, PA; The Math Forum
    Annotated bibliography for the contributed paper session, "The Scholarship of Humanistic Mathematics," AMS-MAA Joint Meetings, Orlando, Florida, 1996. ...more>>

  49. Real World - Lesson Ideas: Math; Teachnet.Com
    Activities: Buy Groceries; Plan Christmas Vacation; Credit Cards for Kids; Who's Average?; Carpet Your Classroom; Division from a Printer's Viewpoint. ...more>>

  50. Real World Math - Thomas J. Petra
    Lessons that use Google Earth to teach math include Oil Spill Estimates and Scientific Notations; Iditarod Challenge and Typhoon Project; Four Color Map and Mazes & Labyrinths; Crop Circles and Fractal Measurement; Lunar Sports and Rockets. Each lesson ...more>>


 
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