By default, then, the ultimate responsibility for reviewing past lessons falls to the student. But will she follow through on this responsibility? Traditional classroom models make this difficult. The whole thrust of her education has taught her to be passive—to sit still, absorb, and eventually parrot back. Now she’s being asked to be thoroughly proactive, to diagnose her own difficulties and actively see to their resolution. That’s asking an awful lot of a student who has been trained to do the opposite.