<p>I recall that Stanford is actually piloting a class this year in which students watch the lectures on-line and do the reading outside of class, and use the class time to discuss the problem sets and issues that come up. The control group is the same class taught by the same teacher in the conventional lecture + homework way. This is part of the evolution of teaching styles as more and more classes are available ‘on-line’ and the job of the prof is being redefined as an intellectual resource. Interesting experiment and I’m looking forward to hearing about the outcome.</p>