Recreations

Science, Math, Recreations, Competitions - MathCounts. United States national math coaching and competition program for middle school students.

Science, Math, Recreations, Competitions - The Mandelbrot Competition. Includes introduction to contest, news, memos, resources and on-line registration.

The Centre for Education in Mathematics and Computing

Science, Math, Recreations, Competitions - Singapore International Mathematics Olympiad. Training resources include problems and partial solutions.

Science, Math, Recreations, Games and Puzzles - Scott Kim. Puzzles for web, computers, and print.

Science, Math, Recreations, Specific Numbers - Calculating Pi. An open source endeavor for the calculation of this constant.

Science, Math, Recreations, Competitions - Math League. Specializes in math contests, books, and computer software designed for students from the 4th grade through high school.

Science, Math, Recreations - Mathmos. Includes puzzles, jokes, quotations, poetry, and FAQs.

Rambling on recreational mathematics

Science, Math, Recreations - Number Recreations by Shyam Sunder Gupta. Features interesting facts about different numbers.

Pages in Mathematics, Mathematik seiten

Science, Math, Recreations - Math Cats. A magic chalkboard takes you to a math art gallery and lots of interactive math activities, including: magic squares, conversions, seasonal surveys, symmetry, tessellations, geometric designs, games.