ABSTRACT
To be sure, there is a place for lecturing. A good lecture is well structured, clearly delivered, entertaining, informative and stimulating. At its best it is an art form. But lecturing and learning are not one-for-one the same thing. Those who listen are usually passive. After 15 minutes or so, most minds wander (I generalize from a sample of one with which I am familiar). In contrast, much good learning is interactive, through analysis, discussion and reflection.
