Over the past decade, the free instructional website Khan Academy has transformed how tens of millions of students across the globe perceive and approach math. Now, it’s pursuing a bigger aim: ...

Continuing its evolution from quirky disruptor of traditional classroom learning to mainstream player aligned with the education establishment, the nonprofit Khan Academy recently unveiled new online ...

Watching videos online usually means goofing off. But over the past few years, millions of decidedly enterprising people have turned on their computers to watch, of all things, math and science ...