Shifting responsibility for learning basic course content onto the student, alters the instructor’s role to that of setting the stage, not being on it.
In the end, the benefits of the flipped approach are considerable. Students take more responsibility for their own learning. Working in class along with a master of the discipline (you), they learn to think more critically, communicate more effectively, and have a greater appreciation for the unique importance and logic of the subject. And they experience at least some of the satisfaction of learning how to think in a new and, in some cases, life-changing way.
Via Kim Flintoff