Teen Homework Help — Websites
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- Khan Academy
The Khan Academy is a not-for-profit 501(c)(3) with the mission of providing a world-class education to anyone, anywhere. Site has over 1800 videos on math, science, history, and SAT prep. Extensive math section, including algebra, calculus, trigonometry, statistic, probability, and linear algebra.
Fun, interactive, research-based simulations of physical phenomena from the PhET project at the University of Colorado. Physics, chemistry, biology, earth science and math simulations