- Blog of Science - Pierre Far
A blog started in December, 2005, by a bacterial geneticist to "write about the latest scientific discoveries, explaining them in terms everyone can understand." Far favors topics that "affect people," so blogsci.com tends to feature health and medicine
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- BLOSSOMS - Massachusetts Institute of Technology Learning International Networks Consortium (MIT LINC)
Video modules that enliven existing curricula with clips and support materials for in-class teachers to intersperse in active, goal-oriented exercises. Each module includes a teacher's guide, downloadable hand-outs, and a list of additional resources;
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- Blue Web'n Learning Sites Library
Learning Applications: a library of Internet-based instruction. Search for applications by grade level, application type, content area, Dewey number, and/or keyword. A Content Table shows the number of entries for each content area and application type
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- Bob's Pages - Bob Allanson
A collection of geometry applets. Generate and modify polyhedra, investigate the Mandelbrot and Julia sets, or experiment with Pappus's arbelos, the porisms of Poncelet and Steiner, and a logarithmic spiral.
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- Body Surface Area Calculator - Evelio Perez-Albuerne
Calculate the surface area of your body (in square meters) from height and mass.
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- Boil, Boil, Toil and Trouble: The International Boiling Point Project - Center for Improved Engineering and Science Education (CIESE)
People from all over the world boil water at different elevations and post data to discover which factor in the experiment (room temperature, elevation, volume of water, or heating device) has the greatest influence on boiling point. Anyone can boil water,
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- Bonsonhos HomePage - David Salvado
See and learn about trigonometry with the freeware program Círculo Trigonométrico 2.0. Also a way of calculating Pi. Veja e aprenda o que é a trigonometria com o programa freeware Círculo Trigonométrico 2.0. Aprenda
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- Bookfill Publications - C. J. Davis
Algebra and geometry workbooks formatted to facilitate writing all answers directly onto the book. These books, for Year 10 and Year 11 students who require GCSE maths revision, cover general Foundation and Higher level topics.
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- Book of Odds - Book of Odds, Inc.
A dictionary "filled not with words, but with numbers -– the odds of everyday life." The Book of Odds "contains hundreds of thousands of Odds Statements, from the odds of being the only one to survive a plane crash, to the odds of having a heart attack,
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- Books and other nonweb resources (History of Mathematics) - David Joyce; Dept. of Mathematics & Computer Science, Clark University
Organizations devoted to the history of Mathematics; a Bibliography of source books; Journals; Bibliographies and catalogues; and Texts on the history of mathematics.
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- Books by Lillian Lieber - Lillian Lieber, Hugh Gray Lieber, Paul Dry Books
Paul Dry Books has republished three of Lillian Lieber's books on mathematics: The Education of T.C. MITS: What Modern Mathematics Means to You, Infinity: Beyond the Beyond the Beyond, and Einstein's Theory of Relativity. Lillian Lieber was the head of
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- Books: Professional & Technical: Education - Amazon.com
Browse bestselling books about education from the Professional and Technical Bookstore at Amazon.com, in categories such as General; Biographies of Educators; Counseling; Education Theory; Lesson Planning; Preschool & Kindergarten; Reference; Special
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- Books: Professional & Technical: Professional Science: Mathematics - Amazon.com
Browse bestselling math books from the Professional and Technical Bookstore at Amazon.com, in such categories as Applied; Chaos & Systems; Geometry & Topology; Mathematical Analysis; Mathematical Physics; Number Systems; Pure Mathematics; Transformations;
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- Boolean Algebra (Encarta Encyclopedia 2008) - Microsoft Encarta Online
Boolean Algebra, branch of mathematics having laws and properties similar to, but different from, those of ordinary high school algebra. Formally a Boolean algebra is a mathematical system consisting of a set of elements, which may be called B, together
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- Boomerang (SMILE) - Wilhelm L. Lilly, Kenwood Academy High School
A lesson for grades 4-12 designed to teach students to estimate angles in degrees and distances in feet or meters; collect data and analyze a histogram; and (optionally) study gyroscopic precession and aerodynamics. From the Recreational and Creative
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- Border Pattern Gallery - John Wolfe; Geometric Structures Class, Oklahoma State University
A gallery developed as a class project: creating and classifying border patterns (also called frieze or band patterns) provides an engaging introduction to symmetry for students of all ages. Examples and explanations for seven different border types.
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- 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
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- 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
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- 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
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- 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?
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- 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
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- 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.
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- 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
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- BrainBashers - Kevin Stone
Five math or logic challenges on a page, each with clickable hints and solutions. For games, visit http://www.brainbashersgames.com/.
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- 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.
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- 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
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- 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.
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- 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,
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- 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."
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- 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
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- 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.
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- 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,
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- Breaking the Light Barrier - Michael H. Walker
Galleries of fractal images: Flarium 1, Inkblot 1, etc.
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- 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
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- 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
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- 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.
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- The Bridges of Königsberg - Jim Loy
A brief introduction to Euler's Bridges of Königsberg problem, graph theory, and simple related puzzles.
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- 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
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- 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/.
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- 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.
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- 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;
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- A Brief History of Statistics - Richard Walker
Notes adapted from the article, The Development of Modern Statistics, by Dale Varberg which appears in Swetz, Frank (editor), From Five Fingers to Infinity: A Journey Through the History of Mathematics, Open Court, 1994.
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- 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.
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- 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
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- 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,
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- 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.
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- 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,
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- 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
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- 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
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- A Broken Calculator - Cut the Knot!, Alexander Bogomolny, with Don Greenwell
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
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