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  All Sites - 7018 items found, showing 601 to 650

  1. Bottles in a Wine Rack - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    Arranging wine bottles in a rack leads, under certain circumstances, to a curious mathematical problem discussed in books by S. Wagon and R. Honsberger. The site arouse out of an attempt to illustrate their solution. The dynamic illustration quickly ...more>>

  2. Bowman in Arabia - Bowman Dickson
    Blog by a teacher of calculus and AP Calculus at King's Academy (Jordan) who "believes in optimism and enthusiasm above all else." Posts, which date back to August, 2009, have included "Maybe I'm starting to become more Jordanian"; "But my son told me ...more>>

  3. Boxes and Bags - Aunt Annie's Crafts
    Five projects that are fun to make and teach some basics of geometry: Snowflakes, Geometric Solids, and More Geometric Solids work well in gift wrapping; Flexagons and Tangrams make nice gifts. All of the projects can also be incorporated into lesson ...more>>

  4. 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>>

  5. 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>>

  6. 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>>

  7. 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>>

  8. 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>>

  9. 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>>

  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. Brainly.com.br
    "Estudamos em grupo." Faz perguntas; responde para ganhar rankings. Veja, em particular, o arquivo de dever e soluções na area de matemática. ...more>>

  14. 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>>

  15. 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>>

  16. 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>>

  17. 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>>

  18. 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>>

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

  20. 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>>

  21. 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>>

  22. 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>>

  23. 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>>

  24. 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>>

  25. 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>>

  26. 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>>

  27. 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>>

  28. 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>>

  29. 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>>

  30. 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; Schickardís machine; ...more>>

  31. 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>>

  32. 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>>

  33. 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>>

  34. 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>>

  35. 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>>

  36. 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>>

  37. 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>>

  38. A Broken Calculator - Cut the Knot!, Alexander Bogomolny
    Thoughts on the controversial question of using calculators in the classroom, and the author's belief that even a broken calculator may have its uses: the elementary mathematics curriculum may emphasize any or all of the paper-and-pencil, mental, or technology-based ...more>>

  39. Brownian Motion - Charlie Geyer
    An applet that draws one-dimensional Brownian motion, with source code and a link to statistical Java applets by others. ...more>>

  40. b's law - Brian Lawler
    Blog begun March, 2011, by a professor of math education at California State University San Marcos. Posts, which "try to disrupt," have included "continued reaction to tracking," "The Problem of the Skateboarder Problem in IMP," "A Deconstruction of Learning ...more>>

  41. BUBL Link: Libraries of Networked Knowledge
    A searchable national information service for the UK higher education community. Directory of UK organisations and institutions; Archive of LIS, journals, Internet development; abstracts, full text, hundreds of titles of journals; news: jobs, events, ...more>>

  42. Buffon's Needle - Michael J. Hurben
    A Java applet that simulates a Monte Carlo method for the estimation of the value of pi, 3.14159265... The user controls the speed of simulating the dropping of up to 100,000 needles or pins on equally spaced parallel lines, while a bar graph displays ...more>>

  43. Buffon's Needle (MSTE) - George Reese; University of Illinois at Urbana-Champaign (UIUC)
    Buffon's Needle, first stated in 1777, is one of the oldest problems in the field of geometrical probability. It involves dropping a needle on a lined sheet of paper and determining the probability of the needle crossing one of the lines on the page. ...more>>

  44. Buffon's Needle - Paul Kunkel
    An investigation of the problem: Consider a plane, ruled with equidistant parallel lines, where the distance between the lines is D. A needle of length L is tossed onto the plane. What is the probability that the needle intersects one or more lines? ...more>>

  45. Buffon's Needling Ants - Ivars Peterson (MathTrek)
    The idea of estimating pi by randomly casting a needle onto an infinite plane ruled with parallel lines was first proposed by the naturalist and mathematician Georges Louis Leclerc Comte de Buffon (1707-1788). In recent years, computer simulations have ...more>>

  46. bugman123.com - Paul Nylander
    Tessellations, gear spheres, hyperbolic geometry, fractals, hypercomplex fractals, minimal surfaces, and more original mathematical artwork. See also Nylander's simulations of physics phenomena such as the magnetic field of a solenoid, 2D wave-particles, ...more>>

  47. Build a Recreation Center Using Geometry - Gwen Neuberger, Community High School, West Chicago, IL
    "Our geometry class is being asked to design a recreation center for the children of West Chicago. Money is no object. The class will be divided into groups of approximately four students." The site includes a lesson plan and scenario, as well as pages ...more>>

  48. Building an Icosahedron as a Class Project - Frederick J. Wicklin
    A Teacher's Guide. This document describes how to build an icosahedron as a class project. The size is up to you. Step-by-step instructions are provided, as well as figures, diagrams, and templates. ...more>>

  49. Building a Virtual Museum Community - Jamie McKenzie
    Virtual museums provide an excellent opportunity for museums to partner with schools. The Bellingham (WA) public schools recognized the potential of a partnership with the Whatcom County Museum of History and Art in Fall of 1995. This article describes ...more>>

  50. Building Big - WGBH Educational Foundation
    Explore great feats of engineering and the ingenuity of the engineers, architects, and builders who designed and built them. Learn about bridges, domes, skyscrapers, dams, and tunnels; use Flash interactive engineering labs to experiment with forces, ...more>>

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