I have had a problem with exam days and introducing new material on the same day. The way the class is designed is 4 hours. Often I will need to test on the same day as a lecture (being an accelerated program we don't have many class meetings). If I lecture before the exam, nobody pays attention to the material because they're too busy worrying about forgetting exam info. So, I tend to exam first, and then hold the lecture last. It just seems, then, that they are all paranoid about the exam they just took and can't focus on… >>>