Grace King graduate Sal Khan was the focus of a "60 Minutes" profile.
Khan's online academy may fundementally change how schools teach children in the future.
"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. That's exactly what Sal Khan is doing on his website Khan Academy. With its digital lessons and simple exercises, he's determined to transform how we learn at every level. 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."