I use this power point to review before a test. I have the students use their whiteboards to write their answers. When I notice most/all of the students are finished I will click on the large bell which starts a timer. When the buzzer goes off I have the students hold up their whiteboards and check their answers. The review has a sample of the types of questions that will be on the test.
It is a simple power point but the kids love doing them and it is a great review.