Mrs. D. recommended this nice little article on “flipped teaching”, where students get lessons from videos (usually at home) and spend their time in class working on problems and getting help from peers and their teacher. Sounds a lot like Montessori. In middle school, for example, where you get a short lesson at the beginning of the week and spend the rest of the time working on projects and assignments.
Pushing the video out of the classroom can, potentially, be a useful step, especially for those students who can work independently. I’ve been trying it a little with the Khan Academy videos, but I need to organize it a bit more.