For most of us, hearing something just once isn’t nearly enough to commit it to memory. But with today’s crowded curriculum, sometimes one explanation is all kids get. Ten years ago, Sal Khan set out to change that with his Khan Academy videos, which let kids replay lessons as many times as they want. EdSurge sat down with Khan to discuss his vision for reinventing schools, his recent focus on testing and what he thinks about the recent stumbles of AltSchool, a nearby network of tech-driven independent schools.
