Khan Academy - 0 views
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"The Khan Academy is a not-for-profit 501(c)(3) with the mission of providing a world-class education to anyone, anywhere. We are complementing Salman's ever-growing library with user-paced exercises--developed as an open source project--allowing the Khan Academy to become the free classroom for the World. Log in to the Khan Academy web application for user-paced practice and instruction"
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