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  1. Automated Geometry Java Applet Generation - Saltire Software
    Prototype automatic generation of Java Applets from a constraint-based geometry description. Examples: geometry applets (angles on a chord, similar triangles, angles between parallel lines, two right kites, perpendicular bisectors of a right triangle, ...more>>

  2. Automatic Calculus Solutions: Step-by-Step Derivatives and Integrals
    Derivatives and integrals, done automatically with each step explained. Long multiplication and division of polynomials. ...more>>

  3. Automatic Fractal Map Generator - Paolo Guagliumi
    A freeware program that generates .map files used by Winfract and Fractint, which make use of .map files that contain 256 lines of ASCII characters that describe RGB (red, green, blue) color values. Site is in English and Italian. ...more>>

  4. Avances de Investigación en Educación Matemática
    The official publication of the Spanish Society for Research in Mathematics Education (SEIEM, Sociedad Española de Investigación Matemática) welcomes contributions in either Spanish or Portuguese. Freely download PDFs of past articles, ...more>>

  5. "Average" Temperature (Math Chat) - Frank Morgan, MAA Online
    Answering the challenge: The National Weather Service approximates the daily average temperature by the average of the daily high and low temperatures. Why is this such a good approximation? Mathematically, the approximation is good because Earth's warming ...more>>

  6. Averaging Diving Scores - NASA Lewis Learning Technologies Project
    Kim received the following scores in the state diving championships: 5.2, 5.6, 4.5, 5.0, and 5.2 What was her average (mean) score? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  7. Averting Instant Insanity - Ivars Peterson (MathTrek)
    Once called "The Great Tantalizer," the puzzle looks innocuous and sounds quite simple. It consists of a set of four cubes with one of four colors on each of their six faces. Your goal is to arrange the four cubes in a row so that all four colors appear ...more>>

  8. The Awari Oracle - John Romein
    Play the ancient African "count and capture" strategy board game, related to mancala, and also known as wari, awale, oware, or ayo. Dutch computer scientists from Amsterdam's Vrije Universiteit developed a program that computes the best move and eventual ...more>>

  9. Awesome Grades in Math and Science (AGMS) - Anita Delmar; AwesomeInfo.com, Inc.
    You may purchase the AGMS main volume, a comprehensive guide for success in grades 7-12 math and science courses; a checklist/diagnostic tool; and a Web resource list (Anita Delmar's personal collection of the "best of the best" in math and science help ...more>>

  10. Awesome Library - R. Jerry Adams
    Browse or search this carefully reviewed collection of math lesson plans, standards, and other classroom resources, organized by topic and grade level. With support from the Evaluation and Development Institute, the Awesome Library screens third-party ...more>>

  11. AwesomeTutors.com
    Las Vegas-based one-on-one tutoring service, with email, webcam and phone tutoring available for most tutoring subjects. Prepayment required. ...more>>

  12. The Aztec Calendar: Math, Geometry, and Design - Charles William Johnson
    A site that explores the relation between the mathematics of ancient reckoning systems, expressed in historically significant numbers (cited in the historical record), and designs within the geometry of ancient artwork. The complexity of design within ...more>>

  13. The Aztec Calendar - René Voorburg
    Historical information and illustrations of the two more or less independent systems comprising the Aztec calendar, one having 365 days and based on the agricultural or solar year, the other with 260 days. A Calculator allows you to enter a date in the ...more>>

  14. Babylonian and Egyptian Mathematics - MacTutor Math History Archives
    Linked essay describing the character and accomplishments of these two early mathematical systems, with references and other related web sites. ...more>>

  15. Babylonian numerals - MacTutor Math History Archives
    Linked essay exploring the development of the Babylonians' number system, with ideas inherited from the Sumerians and the Akkadians. From them came base 60, or the sexagesimal system, but neither the Sumerian nor the Akkadian system was a positional system ...more>>

  16. Backpack Project - Germantown Academy
    Spurred by an orthopedic surgeon's report recommending how much weight a person should carry, teams of fifth and twelfth graders examined student backpack weights in relation to body weights in all three divisions of their school, weighing over 800 students ...more>>

  17. Bagatrix Mathematical Software - Bagatrix Solutions, Ltd.
    Commercial software that features step-by-step solutions to user-entered problems, with prompting. Titles include: Solved! Studio (comprises Basic Math, Pre-Algebra, and Algebra titles), Algebra Solved!, Pre-Algebra Solved!, Basic Math Solved!, Graphing ...more>>

  18. Baker's Choice - Key Curriculum Press
    An Interactive Mathematics Program (IMP) unit for replacing about three weeks of student practice with graphs and equations in a traditional algebra, advanced algebra, or even geometry or pre-calculus class. Purchase teacher's guide and student materials. ...more>>

  19. The Bakhshali manuscript - MacTutor Math History Archives
    Linked essay on the discovery and history of an early mathematical manuscript. The Bakhshali Manuscript is a mathematical work written on birch bark, found in the summer of 1881 near the village Bakhshali in Mardan tahsil, 50 miles from the city of Peshawar ...more>>

  20. Balanced Assessment in Mathematics - The Concord Consortium
    From 1993 to 2003, the Balanced Assessment in Mathematics Program existed at the Harvard Graduate School of Education. The project group developed a large collection of innovative mathematics assessment tasks for grades K to 12, and trained teachers to ...more>>

  21. Barcode Encoding - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    Barcodes are used with various encodings all over the world to simplify product identification, especially in retail. The site explains the most popular encodings, like UPC (Universal Product Code), ISBN (Intenational Standard Book Number), and EAN-13 ...more>>

  22. Barry G. Adams
    Barry Adams is a professor of mathematics and computer science at Laurentian University in Ontario, Canada. His website includes many Java applets, including elementary numerical methods (i.e. Newton's Method), various examples of chaotic attractors, ...more>>

  23. Barry Garelick, Author at Education News - EducationNews
    Articles by Garelick, who teaches middle and high school math in California, have included "The Myth About Traditional Math Education," "Fran, Henderson & Pingry, and Me: A Tale of Problems vs Exercises," "Mathematics Education: Being Outwitted by Stupidity," ...more>>

  24. Barry Mazur
    Home page of the Harvard University professor, whose research interests include number theory, automorphic forms, and related issues in algebraic geometry. The author of Imagining Numbers (Particularly the Square Root of Minus Fifteen), Mazur freely offers ...more>>

  25. Base 10, Base 2, and Base 16 - Walter Davis
    Examples of different bases. There are several ways to represent a value using symbols. Roman numerals are an example. Position valued representation (PVR) is another example, the one with which we are the most familiar. With PVR, a limited number of ...more>>

  26. Baseball Heat Maps - Jeff and Darrell Zimmerman
    Heat maps, Loess curves, Pitch F/X and Retrosheet downloads: actual vs expected home runs; home run and fly ball distance leaders; total batted ball distance; ground ball and line drive pull percentages; batter swinging or looking strike zone; batter ...more>>

  27. BaseballSavant.com - Daren Willman
    Daily feeds of Major League Baseball (MLB) player matchups and advanced statistics on those players. See, in particular, Willman's Instant Replay Database, which analyzes umpire reviews and manager challenges of fair or foul in outfield, fan interference, ...more>>

  28. Base Considerations - Keith Devlin (Devlin's Angle)
    A discussion of base systems, including negative bases, used in computers. "We are so used to computers nowadays that it seems obvious that computer arithmetic should be performed in a binary fashion. After all, this is the most natural form for a computer, ...more>>

  29. Base Conversion Routine - David Cronin
    This is a Javascript base conversion program for bases 2 through 36. The author writes: "Feel free to make use of it. It's limited only by the precision of enviroment runtime." ...more>>

  30. Base Converter - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    A fairly high-level introduction to binary and other base systems, with a Java converter and links to related pages including: arithmetic operations in various bases, algorithmic conversion procedure, linguistic fun with base 36, Napier bones, abacus, ...more>>

  31. Basic Concepts in Nonlinear Dynamics and Chaos - Keith Clayton
    An introduction to chaos, dynamic systems, and fractals, with a glossary of important terms. ...more>>

  32. Basic Geometry of Voting - Donald G. Saari
    A book that offers a large number of new results about voting theory, its emphasis purposely placed on three candidate settings so that the book can be read by almost everyone. (With four or more candidates, the results need more advanced mathematical ...more>>

  33. Basic Ideas in Greek Mathematics - Michael Fowler; University of Virginia
    Lecture notes from a course entitled "Galileo and Einstein." Nailing down the square root of 2. Zeno's paradoxes: Achilles and the tortoise. Proving an arrow can never move - analyzing motion, the beginning of calculus. How Archimedes calculated Pi to ...more>>

  34. Basic Math Concepts and Fundamentals - R. H. Logan
    A series of readings and practice problem activities designed to alleviate "math anxiety," for those planning to take a science course but uncertain about the math preparation. Includes lessons and practice problems. The topics covered are especially ...more>>

  35. Basic Mathematics - Jetser Carasco
    Short, instructive articles that explain fractions, ratio and proportion, number theory, basic geometry, graphs, decimals, percents, and some algebra. This site, created by a math major who has taught high school math since 2008, also offers free math ...more>>

  36. The Basic Math Quick Reference Handbook - Pete Mitas
    This handbook, written by an experienced math teacher, lets you quickly look up definitions, facts, and problem solving steps. It includes over 700 detailed examples and tips to help someone improve their mathematical problem solving skills. The web ...more>>

  37. Basic Skills Resources - National Institute for Literacy
    The Basic Skills Resource Collection focuses on reading, writing, mathematics and numeracy resources that can improve instruction in basic skills. Each resource listing features an abstract and a review by an expert in the field. Resources in this Collection ...more>>

  38. Basic Terms - Mark Motyka, Math League Multimedia
    Definitions and illustrations of basic geometric terms: lines, points, intersection, line setments, rays, endpoints, and parallel lines. ...more>>

  39. Basic TI-82 Tutorial - University of Illinois at Urbana-Champaign
    An online interactive tutorial that starts from scratch with turning on the TI-82 calculator and takes you through the basic steps needed to do arithmetic and function evaluation and to enter, graph, and tabulate functions. You use a TI-82 as you view ...more>>

  40. Basic TI-92 Tutorial - University of Illinois at Urbana-Champaign
    An online interactive tutorial updated for the new TI-92 layouts and commands. It begins with turning on the TI-92 calculator and proceeds through the basic steps needed to do arithmetic and finally to entering, graphing and and tabulating functions. ...more>>

  41. BasketMath Interactive - Robert Cummings, Science Academy Software
    Science Academy Software's BasketMath online interactive application drill and practice site offers auto-scoring questions in arithmetic, rounding and writing numbers, order of operations, factoring, adding or multiplying signed numbers, calculating perimeter ...more>>

  42. Battleship Puzzles - Erich's Puzzle Palace; Erich Friedman
    There are five 3 x 1 ships hidden in each puzzle grid, each ship with a different number from 1 to 5. The numbers at the sides of the grid give the sum of the numbers on all the ships in that row or column. Ten puzzles, with answers provided. ...more>>

  43. A B Cron Portal - Auston B. Cron
    GeoGebra applets by a teacher who has taught high school and early college students since 1970, and uses his dynamic geometry animations and interactive sketches in his classes to teach angle sums; perimeters and areas of rectangles and squares; reference ...more>>

  44. Beacon Learning Center - Beacon Learning Center
    Beacon Learning Center is an online educational resource and professional development center funded through a grant from the U. S. Department of Education, 2000-2005. The resources posted in the Beacon database are products of professional development ...more>>

  45. BEATCALC Archive - Math Forum
    An archive of B. Clay's BEATCALC weekly mailing list. Amaze your friends by memorizing a few simple rules and doing mental math tricks faster than they can do them on a calculator. Squaring, multiplying, dividing, adding, and subtracting numbers; finding ...more>>

  46. The Beauty of Chaos - Uwe Krüger
    A database of over 500 pictures of the Mandelbrot set. Also links to a CD-ROM and other fractal image sites. ...more>>

  47. Bee Alert - University of Montana
    Bees and portable computers can now be used to assess environmental hazards through the development of electronic hives, toxicological models, extensive databases, and pattern-recognizing software that help assess risks posed by metals, radiation, carcinogenic ...more>>

  48. Beeneet Kothari Wins First $1000 National High School Calculus Student Award (Math Chat) - Frank Morgan, MAA Online
    Beeneet Kothari of Half Hollow Hills High School West, Long Island, has been awarded the first $1000 National High School Calculus Student Award by ecalculus.org, based at the University of California at Davis and Williams College. In ninth grade he wrote ...more>>

  49. Before Pythagoras: The Culture of Old Babylonian Mathematics - New York University Institute for the Study of the Ancient World
    This archaeological exhibit explored the world of Old Babylonian mathematics through cuneiform tablets, and illustrates how the ancient civilization performed arithmetic on numbers based entirely on two symbols. Online highlights include images of a multiplication ...more>>

  50. ... Before This Decade Is Out ... - Keith Devlin (Devlin's Angle)
    With four thousand professionally active mathematicians gathered together, the January Joint Meeting provides an opportunity to check the pulse of the US mathematical community and to look for any significant new trends... "Make the preparation of K-12 ...more>>

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