You will find it here, it is one of the very best short pieces written on this topic. Excerpt:
A lot of mooc is, in fact, a modern textbook — because the twitter generation does not read. Forcing my campus students to watch the lecture videos and answer some simple quiz questions, covering the basic expository material, before coming to class — all checked and graded electronically — worked wonders to produce well prepared students and a brilliant level of discussion. Several students commented that the video lectures were better than the real thing, because they could stop and rewind as necessary. The “flipped classroom” model works.
Read the whole thing.