There has been quite a bit of talk about 'flipped school' over the last few months, mostly centred around Sal Khan's video lectures. The concept of the flipped school is that students should watch video lectures at home and come to school for one-on-one tutoring from their teachers. It's worth noting that i) Sandi Mann's research shows that 60% of students find lectures boring and ii) watching videos about even extremely complex problems only light up the brain a fraction of how much working with a group of people does. If you want to give your brain a work out, question a friend about something you're both learning.
Recording videos for 'pure' concepts like calculus and physics might work well for some learners, but once you start presenting things like the French Revolution in the same manner, I get a little bit worried. The beauty of studying history is hearing different voices, and differing interpretations, and the thought that you can 'get' an event from a video lecture is a bit unsettling. I also think the Khan videos have gained such popularity because there is an inherent lack of trust in most teachers' ability to explain difficult concepts.
Personally I think we need to flip the flipped school.