
And he was like, "If you have time, you know, love to fly you up to Seattle." And then I was looking at my calendar right then for the month. And he says, you know, "You might have heard Bill's a fan." And I'm like shaking. Khan: Two weeks later I got a call from Larry Cohen who is Bill Gates' chief of staff. That's right, Bill Gates, one of the smartest and richest men in the world, was using Sal Khan's free videos to teach his own kids. It's a non-profit with a simple but audacious mission: "to provide a free, world-class education for anyone, anywhere." If that goal sounds far-fetched for a guy working in his closet, consider what happened next. So in 2009, Khan quit his job and working from a desk set up in his closet devoted himself full time to Khan Academy. People don't say that type of stuff to a hedge fund analyst normally. Khan: I started getting feedback like, "You know, my child has dyslexia, and this is the only thing that's getting into him." I got letters from people saying, "You know, we're praying for you and your family." That's pretty heady stuff. They helped Nadia, but then an odd thing happened - total strangers started using them too. He agreed to tutor her remotely and wound up posting lessons on YouTube. It all started in 2004 when Sal Khan was working as a hedge fund analyst in Boston and his cousin Nadia, a 7th grader in New Orleans, was struggling with algebra. I think that's what people like, the kind of humanity there. That, you know, it isn't always this clean process where you just know the answer.

And to see that it is actually sometimes a messy process. Or I'm thinking it through myself if I'm explaining something. Khan: I'm 95 percent of the time working through that problem real time. Khan: I've gotten a lot of feedback that is really does feel like I, I'm sitting next to the person and we're looking at the paper together. One of his most famous pupils, Bill Gates, says Khan - this "teacher to the world," is giving us all a glimpse of the future of education. With its digital lessons and simple exercises, he's determined to transform how we learn at every level. That's exactly what Sal Khan is doing on his website Khan Academy.

Take a moment and remember your favorite teacher - now imagine that teacher could reach, not 30 kids in a classroom, but millions of students all over the world. The following script is from "Teacher to the World" which aired on March 11, 2012. Backed by Google, Gates, and other Internet powerhouses, Sal Khan wants to change education worldwide, and his approach is already being tested in some American schools. Khan is the voice and brains behind Khan Academy, a free online tutoring site that may have gotten your kid out of an algebra bind with its educational how-to videos. (CBS News) Sal Khan is a math, science, and history teacher to millions of students, yet none have ever seen his face.
