From a tiny closet in Mountain View, Sal Khan is educating the globe for free. His 1,516 videotaped mini-lectures — on topics ranging from simple addition to vector calculus and Napoleonic campaigns — ...
In the rapidly expanding field of online education, no one has matched the success of Salman Khan. After he started out tutoring his nephew online, the former hedge fund analyst built up Khan Academy, ...
In 2008, Sal Khan had a bright future making millions as a hedge fund manager. He gave it up to produce low-budget math films on YouTube for free. Fortunately, hidden among his millions of loyal ...
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