Sal Khan is teaching the world

05.09.2010

Sal Khan has made 1,500 videos to educate the world. Image: YouTube

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"This guy is amazing," Bill Gates wrote on his blog. "It is awesome how much he has done with very little in the way of resources." Gates and his 11-year-old son now spend hours watching Sal Kahn's videos about everything from algebra to molecular theory and are tweeting about the results.

Bill Gates's tweet

At some universities, a teaching load of five courses every academic year is considered a lot, but Sal Khan delivers his lectures an average of 70,000 times a day. Working from the comfort of his home, Khan has made available more than 1,500 mini-lectures to educate the world. Subjects range from math and physics to finance, biology and economics. And he does it all with Camtasia Studio ($200), an $80 Wacom Bamboo Tablet and a free copy of SmoothDraw 3. He says that he is trying to provide education in the way he wished he had been taught. With more than 100,000 video views a day, he's now making a difference to many students.