"Since 2012, the New York Code + Design Academy has been teaching code and user experience design to hundreds of students without any prior experience in tech. "
A great explanation of the power of blended learning, whether or not you think Khan's Academy is the pinnacle of the practice.
"Educational technology pioneer Salman Khan maps how online learning tools can help physical classrooms evolve to become hubs for creativity and hands-on experiences, and how Khan Academy and the Discovery Lab summer camp fit into that big picture."