I'm interested in hearing more about this (failed) experience. The only stories I've heard about trying to integrate KhanAcademy into the classroom have been fr

I'm interested in hearing more about this (failed) experience. The only stories I've heard about trying to integrate KhanAcademy into the classroom have been from their pilot program in Los Altos, which to my knowledge has been very successful so far. So I'm interested to hear what the difficulties have been for people that haven't gotten it to work so well. Did you have pop quizzes or anything to test their knowledge of the videos? As non-students, we think of a "watch-this-video" assignment as being really easy and something that surely everyone will do, but to students they probably interpret such an assignment as "it's-not-important-that-I-do-this," and thus don't waste their time unless they're particularly driven or bored. But I wonder if somehow quickly testing their knowledge on the subject in the videos could completely turn that structure on its head.