April 7, 20211 min read, 297 words
Published: April 7, 2021 | 1 min read, 297 words
6,044,337 views | Sal Khan • TED2011LikeShareAddSalman Khan talks about how and why he created the remarkable Khan Academy, a carefully structured series of educational videos offering complete curricula in math and, now, other subjects. He shows the power of interactive exercise...
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