Review, clarified

Weblog reader Irene protests that I should have spent more time on the topic rather than fooling around during the review session. I should have explained. We didn't just fool around. I answered many questions about the topics on the exam. But I refuse to just start rehashing the material without direction from the students. It is up to them to ask me questions about the material I put on the review sheet. If they have no questions, then I head off on a tangent just so they know that they're going to have to take the initiative if they want me to help.