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July 28, 2014

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Sal Khan drives home his theories on learning during a speech about online education and financial literacy at WACUBO14 in the J.W. Marriott on Monday, May 5, 2014.

L.E. Baskow

Sal Khan drives home his theories on learning during a speech about online education and financial literacy at WACUBO14 in the J.W. Marriott on Monday, May 5, 2014.