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[ Teens/Mature Teens ] - Offers free math lessons and homework help, with an emphasis on geometry, algebra, statistics, and calculus. Also provides calculators and games.
[ Teens ] - A collection of educational math games and lessons for pre-algebra, algebra, and geometry. Includes practice problems and drills, a math dictionary, and a humor section.
[ 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.
