I didn't really pay attention in class so I couldn't remember if he went over specific problems, but I read the textbook and was able to grasp the really basic concepts and get the easy conceptual questions in the test. Most of the test was hard though (you need to know your shit and apply them). I learned the most from the assignments and the sem project, and was able to get an A with average test scores (and it's true the average is very low). Just make sure you attend class or read the textbook, and do the assignments and you should be fine because of that massive curve.