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  All Sites - 10837 items found, showing 951 to 1000

  1. Boxplots in Excel - Neville Hunt, Coventry University
    A method for using Microsoft Excel to create boxplots, or box and whisker diagrams, which provide a simple graphical summary of a set of data. Boxplots show a measures of central location (the median), two measures of dispersion (the range and inter-quartile ...more>>

  2. Boy or Girl? - Math Forum, a Classic Problem from the Ask Dr. Math FAQ
    In a two-child family, one child is a boy. What is the probability that the other child is a girl? What if the older child is a boy? ...more>>

  3. Boy's Surface (Student Sculpture) - Pau Atela, Smith College
    A mathematical sculpture constructed by students at Smith College for an undergraduate course in the spring 2000 semester. The students worked with formulas and computer calculations to construct and weld a 6'7" x 6'7" metal sculpture reproducing Boy’s ...more>>

  4. The Brachistochrone - Paul Kunkel
    An investigation of the problem: We are given two fixed points in a vertical plane. A particle starts from rest at one of the points and travels to the other under its own weight. Find the path that the particle must follow in order to reach its destination ...more>>

  5. The brachistochrone problem - MacTutor Math History Archives
    Linked essay on the brachistochrone problem, posed by Johann Bernoulli in Acta Eruditorum in June, 1696. With references and other related web sites. ...more>>

  6. Brahmagupta's Formula - Jim Wilson, Dept. of Mathematics Education, Univ. of Georgia
    Problem: Develop a proof for Brahmagupta's Formula, which provides the area A of a cyclic quadrilateral (i.e., a simple quadrilateral inscribed in a circle) with sides of length a, b, c, and d as A = sqrt((s-a)(s-b)(s-c)(s-d)) where s is the semiperimeter ...more>>

  7. BrainBashers - Kevin N. Stone
    A collection of logic, language and math puzzles, in a choice of easy/medium/hard. Rate the puzzles; show their answers. Logic puzzles include Einstein's Puzzle. Play games of strategy, such as "Four in a Row" (also known as "Connect Four") or games based ...more>>

  8. BrainBashers - Kevin Stone
    Five math or logic challenges on a page, each with clickable hints and solutions. For games, visit http://www.brainbashersgames.com/. ...more>>

  9. Brain Boosters - Discovery Education
    An archive of challenging puzzles, organized under: Categorization, Lateral Thinking, Logic, Number and Math Play, Reasoning, Spatial Awareness, Word and Letter Play. ...more>>

  10. Brainers - PedagoNet
    More than 60 word problems and puzzles designed to develop logic and problem-solving skills. Submit your answers and suggestions to become part of the Wall of Fame. Site is in English, French, and Spanish. ...more>>

  11. Brain Food - Puzzles For the Brain To Gnaw On - Samuel Stoddard
    Hundreds of online (CGI) puzzles, including logic puzzles, word problems, number puzzles, lateral thinking puzzles, scrambled equations, cryptograms, logi-number puzzles, discrete reasoning puzzles, mathematical reasoning puzzles, knight's dilemma, magic ...more>>

  12. Brainfreeze Puzzles - Riley, Philip; and Taalman, Laura
    Free example puzzles and solving tips for colorful, hand-designed Sudoku variation puzzles with additional rules that challenge you to rethink your old Sudoku strategies and devise new ones. From the authors of the book, Color Sudoku. ...more>>

  13. Brainingcamp Educational Math Software - Dan Harris, President and CEO
    Real math problems and simulations for 5th-9th grade. Middle school math online software. Guided by NCTM and State mathematics standards. Video demo and free trial available. ...more>>

  14. Brainormous
    Worksheet makers and math games available for demo or purchase: Zeus' Petals, Fourdoku, Multiflyer, Math-teroid, Gridiant, and more. ...more>>

  15. BrainPOP Math - BrainPOP, LLC
    Short animated films that are simple and easy to understand on elementary mathematics, as well as health, science, and technology. Films often accompanied by quizzes. ...more>>

  16. Brain Science & ICT in Mathematics Education - Dave Moursund
    An exploration of three major topics from a math education point of view: Brain Science Craft & Science of Teaching & Learning (C&S of T&L) Information & Communications Technology (ICT). Read the author's thoughts on constructivism, ...more>>

  17. Brainwave - Wognum Art
    Ten visual puzzles, to test your visual and reasoning skills. Most have to do with symmetry recognition. There is a "top 5% brain" award to those who earn ten "smart bulbs." ...more>>

  18. Brainy Figuring - Ivars Peterson (MathTrek)
    In the May 7 Science, Dehaene and collaborators at the Massachusetts Institute of Technology present the first hard evidence that two quite different modes of brain activity underlie our inborn capacity for mathematics. Their study indicates that learning ...more>>

  19. Bray Proves Penrose Conjecture in General Relativity (Math Chat) - Frank Morgan, MAA Online
    In 1979 R. Schoen and S.-T. Yau proved that the total mass of a universe must be positive. Last year [1998] G. Huisken and T. Ilmanen proved that the total mass is at least as large as the largest constituent mass: M >_ m1. Finally this year [1999] H. ...more>>

  20. Breaking Chocolate Bars - Cut the Knot!, Alexander Bogomolny
    The chocolate bar puzzle has three parameters: two side lengths (m and n) and actual selection of lines along which to break the bar and its parts... An interactive column for MAA Online that uses a Java applet to simulate a puzzle or mathematical problem, ...more>>

  21. Breaking the Light Barrier - Michael H. Walker
    Galleries of fractal images: Flarium 1, Inkblot 1, etc. ...more>>

  22. Break-Tru Software - David Giordano
    Math shareware and freeware downloads for the PC include Quick Conversion, which converts distance measures such as inches, feet, yards, rods, furlongs, miles, and leagues to and from metric units such as meters; Fractions n Decimals, which converts mixed ...more>>

  23. Break Your Record for 100 Math Tables - Keiya Kanno
    Practice addition, subtraction, and multiplication in these 10 by 10 tables: downloadable Flash shareware software for Macintosh OS X / Windows 2000, XP. Time and score are recorded automatically, recording up to 8 different users. ...more>>

  24. Brendan McKay
    Software includes nauty, a program for computing automorphism groups of graphs and digraphs, which can also produce a canonical labelling; and plantri, a program for generating planar triangulations. Also, skeptical treatment of claims made of miraculous ...more>>

  25. Brendt Wohlberg - University of Cape Town, South Africa
    Fractal image compression resources: bibliography, publications. ...more>>

  26. Bret Victor
    From the creator of Kill Math, Victor's "umbrella project for techniques that enable people to model and solve meaningful problems of quantity using concrete representations and intuition-guided exploration" in pursuit of a "widely-usable, insight-generating ...more>>

  27. Bricks Activity - Suzanne Alejandre
    A classroom activity (also called the Masonry Problem; a variation on polyominoes) aligned to the NCTM and California Standards, to be explored through manipulatives (dominoes). Students explore different possibilities of making brick walls with and without ...more>>

  28. The Bridges of Königsberg - Isaac Reed
    This problem inspired the great Swiss mathematician Leonard Euler to create graph theory, which led to the development of topology. ...more>>

  29. The Bridges Organization: art and mathematics - George W. Hart, Webmaster
    The Bridges Organization oversees an annual conference on connections between art and mathematics. The site's virtual museum shows sculpture, paintings, drawings, digital prints, textiles, origami and other paper-foldings created by mathematicians and ...more>>

  30. Bridge to Enter Advanced Mathematics (BEAM)
    Creating pathways for underserved students from low-income neighborhoods across New York City to become scientists, mathematicians, engineers, and computer scientists by providing them organizational help, academic counseling, academic help, mentorship, ...more>>

  31. Bridge to Higher Mathematics - Sam Vandervelde
    Textbook for use with the proofs course taught at St. Lawrence University by Vandervelde, an Associate Professor of Mathematics who writes questions for the USA Math Olympiad. Bridge to Higher Mathematics incorporates "concept checks" and "mathematical ...more>>

  32. Bridging Math - Jennifer Bell
    Blog by a K-5 math coach in the Pacific Northwest. Posts, which date back to July, 2015, have included "#TMC15 Recap," "K-12 Fraction Fun," "Choral Counting in Kindergarten," "#OML16 Recap," and "Number Talks and #ObserveMe." Elaborating on the name of ...more>>

  33. Bridging The Gap - Nicora Placa
    Blog by a former elementary and middle school math teacher pursuing a Ph.D. in teaching and learning. Posts, which date back to April, 2013, have included "The subway ad that changed my life," "Transforming the Teaching Profession: It starts with RESPECT," ...more>>

  34. Brief Course Materials for Various Courses - E. Lee Lady; University of Hawaii
    A collection of short handouts: files are in PDF and DVI formats. Contents include: The Fundamental Theorem of Arithmetic, the division algorithm, solutions of linear congruences, solving the Chinese Remainder problem, an example of a continued fraction, ...more>>

  35. A Brief History of Algebra and Computing: An Eclectic Oxonian View - Jonathan P. Bowen; Oxford University Computing Laboratory, UK
    Math history: Chapters on: The Origins of Algebra; Early English Algebra; Algebra and Analytical Engines; Boolean Algebra; Algebra and Computing; Recent Developments in the Algebra of Programs. References. Also available at http://www.museums.reading.ac.uk/vmoc/algebra/. ...more>>

  36. A Brief History of Cosmology - MacTutor Math History Archives
    A hypertext essay describing the course of cosmology from its beginnings in early Babylonian society through the present, with References. ...more>>

  37. A Brief History of Mathematics - British Broadcasting, United Kingdom
    Ten episodes of maths history by Marcus du Sautoy, first broadcast on the BBC in 2010, each themed around a particular mathematician or group of mathematicians. ...more>>

  38. A Brief History of Mathematics - Marcus du Sautoy, BBC Radio 4
    Audio biographies of famous mathematicians: Newton and Leibniz, Euler, Fourier, Galois, Gauss, Riemann, Cantor, Poincaré, Hardy and Ramanujan, and Bourbaki. Each clip, originally aired on BBC Radio 4, runs about fifteen minutes long. ...more>>

  39. A Brief History of Mechanical Calculators - James Redin
    An essay on the historical evolution of calculating machines, from the abacus to Babbage's differential machine to today's computers. Contents include: the abacus; the Antikythera calculator; Napier's Bones; Leonardo da Vinci's design; Schickard’s machine; ...more>>

  40. Brighten's Fractals Page - Brighten Godfrey
    Investigate "Just Another Fractal Generator," a Java applet to make Iterated Function System (IFS) fractals based on triangles, or view a gallery of images created using the program. ...more>>

  41. BrighterDiscovery.com - KW Studios, Inc.
    Products for children to "reach their full potential while having fun doing it." Browse by age (from 0-12 months to 8+ years) or product type, including Activity Toys, Alphabet & Numbers, Blocks & Building Sets, Games, Puzzles & Logic, and ...more>>

  42. Brightest Moon for Thousands of Millennia? (Math Chat) - Frank Morgan, MAA Online
    Answer to the challenge: Was there any validity to the claim that the full moon of December 22, 1999 was the brightest that we shall see for millions of years? (Factors that coincided.) New challenge: Eric Brahinsky saw in an article on "New molecule ...more>>

  43. Bright Ideas Software
    Bright Ideas Software was formed in 2001 with the goal of producing high quality educational software for the college and university market, with particular focus on graphical visualization tools for the physical sciences. We are located in Southeast ...more>>

  44. Brilliant
    Weekly Olympiad-style challenges that offer "rigorous, competitive, whimsical, and edifying" problem sets in math and physics. Register to explore the Brilliant Techniques Trainer's practice exercises; answer correctly to earn points redeemable for lanyards, ...more>>

  45. A Brilliant Madness: The story of Nobel Prize winning mathematician John Nash - PBS
    "The story of a mathematical genius whose career was cut short by a descent into madness." Read a synopsis of the documentary, the film's transcript, primary sources such as John Nash's dissertation, his Nobel autobiography, and more. Based on the documentary, ...more>>

  46. Bring The Internet Into Your Classroom - NASA Quest Project
    Links to an Internet Video Series designed to help teachers, administrators and community members introduce the Internet into K-12 classrooms; grant information; which schools are online; and the universe of other NASA and Education Online Resources. ...more>>

  47. British Combinatorial Committee - Peter Cameron, Chair
    A body that works for the support of combinatorial and discrete mathematics in the United Kingdom. Conferences in 2000 and 2001; Bulletin and information; News Items; links to related sites. ...more>>

  48. The British Society for the History of Mathematics (BSHM)
    The British Society for the History of Mathematics promotes research into the history of mathematics and its use at all levels of mathematics education through meetings, a newsletter, and by other means. The BSHM takes in all periods and civilisations, ...more>>

  49. British Weights and Measures Association - Mr. Vivian Linacre, Edinburgh, UK
    Views and aims; press releases; the association's publications and some articles from them; a list of patrons and officers; subscription details; an invitation to help; and contact information. "The British Weights and Measures Association opposes wanton ...more>>

  50. BrokenAirplane.com - Phil Wagner
    Blog of "tips and ideas that you can use in your classroom immediately, and suggestions to help you, no matter your teaching or technology experience." Posts, which date back to June, 2010, have included "Math Project - Slope Art," "SAM Animation Is the ...more>>

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