Khan Academy: Friend or Foe?
A Principal's Reflections
APRIL 23, 2012
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. All one had to do was read the Twitter stream to deduce this. I must say Sal Kahn is a riveting storyteller.
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