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Khan Academy: The future of education?
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10/05/19
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With the backing of Gates and Google, Khan Academy and its free online educational videos are moving into the classroom and across the world. Their goal: to revolutionize how we teach and learn. Sanjay Gupta reports.
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2 مناظر · 11/20/19
3 مناظر · 10/19/19
0 مناظر · 10/15/19
4 مناظر · 10/05/19
