When we talk about what is available online, this is what we are really talking about.
From a tiny closet in Mountain View, Calif., 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 — are transforming the former hedge fund analyst into a YouTube sensation, reaping praise from even reluctant students across the world.
It’s truly amazing what is out there, and better still, it’s amazing that this kind of thing is essentially going to be available for generations to come.
But are we using it?