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Harcourt Math Glossary
[ Kids ] - Animated and illustrated definitions of math terms for elementary school students. Organized by grade level and alphabetically. [Requires Flash] http://www.hbschool.com/glossary/math2/index_temp.html
[ Kids/Teens ] - Activity site involving multiplication and calculator work. The answers are coordinates which can be joined in sequence to generate simple pictures.
[ Kids/Teens/Mature Teens ] - Introduces the abacus, relates its history, and shows how to perform basic mathematical operations on it. Also answers questions about the ancient tool and shows how to build one with Legos.
[ Kids/Teens ] - This site has been created so that students can have fun and practice math. Includes lessons in addition, subtraction, multiplication, geometry.
[ Teens/Mature Teens ] - Produced by Charles and Ray Eames, the video 'Powers of Ten' has been converted into web images. Explores over 42 powers of ten in a series of images, beginning with a photo of someone lying on the grass. Shows the scale of the universe and atoms.
