2006 Exercises Flipped Classroom Google 
A Principal's Reflections
APRIL 23, 2012
To date, these statistics are: 140 million+ lessons delivered, 500 million+ exercises done, and 6+ million unique visits per month. In addition to using Yahoo doodle, he began writing quiz software in 2006. As the site increased in popularity it caught the eye of Bill Gates and Google with an end result being over 4 million in funding.
Edsurge
MAY 14, 2017
Since he introduced Khan Academy in 2006, the free, open-access education platform has inspired several knock-offs focused on specific disciplines. The latest, MEDSKL , aims to provide comprehensive medical content for use inside and outside the classroom. If imitation is the highest form of flattery, Salman Khan should feel honored.
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