More learning content is becoming available digitally. Students are watching what used to be lectures in the classroom and using face-to-face time for hands-on applications and discussion sessions. The classroom becomes a place of active learning, rather than a room where one takes copious notes to review and try to make sense of at a later time.
TedTalk: Let's use video to reinvent education: http://www.ted.com/talks/salman_khan_let_s_use_video_to_reinvent_education.html
Learner Centered Teaching, Terry Doyle