You can find information & resources of science, biotechnology, chemistry, ecology, technology, science resources, mechanical engineering, earth sciences, astrophysics, nuclear & molecular at PortalScience.com |
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A+ Math
Interactive math help for K-12 students with flashcards, Math Wordfind, Homework Helper and worksheets.
http://www.aplusmath.com/
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Aha! Puzzles
Puzzles, books, games and tests with designed by Lloyd King, author of 'Test Your Creative Thinking'.
http://www.ahapuzzles.com
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Alien Tiles
Object of puzzle is to try to get color pieces to create certain patterns in cube.
http://www.alientiles.com/
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Archive Creative puzzles
Interactive puzzle archive with descriptions for puzzle construction and a special childrens puzzle page.
http://www.creativepuzzels.nl
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Free Puzzle Collections
Educational and recreational puzzles for teachers, students and parents. Each puzzle is graded by difficulty and has a hint. Solutions are available to members.
http://www.freepuzzles.com/
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Logicville
Educational puzzles, brain teasers, and word games such as anagrams, cryptograms, alphametics, doublets, tangrams.
http://www.logicville.com/
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Math Forum
Resources, problems and forum for teachers and students in mathematics.
http://mathforum.org/
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Mathproblems.info
Over one hundred and fifty math problems ranging from basic math to differential equations.
http://mathproblems.info/
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Mathpuzzle.com
Celebrates math puzzles and mathematical recreations.
http://www.mathpuzzle.com/
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Mathschallenge.net
A website dedicated to the puzzling world of mathematics and computer programming.
http://mathschallenge.net/
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Mathwizz
Interactive math problems for abilities ranging from middle school to university.
http://www.mathwizz.com/
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Perfect Times
Teaches and assesses fluency of multiplication and division tables using online cards. Submit data and compare results.
http://www.perfect-times.co.uk/
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Polymorf - Symmetry of Polyhedra
A demonstration of the symmetry and transformational properties of the Platonic and Archimedean solids.
http://www.polymorf.net/
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Pythabacus
Description and instruction of using the ancient Pythagorean Abacus to do arithmetic.
http://www.pythabacus.com/
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Scott Kim
Puzzles for web, computers, and print; ambigrams.
http://www.scottkim.com/
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