As most good instructors know, creating and asking a "good" question is harder than most people think. One of my methods for reviewing for a test is to have the students ask each other questions. I let the students have their notes and handout in front of them. Then each student has to come up with a question. Each student will state their question verbally. If the question is vauge, I will make them restate the question. Sometimes questions are open to the whole class. Other times the question is to be answered by the next student seated. If that student doesn't know the answer, they can pass, but will have to create their own question on the same topic. Sometimes I let them have a mobile shout out ! I like the TV show Cash Cab !