Try something like this. Close the book, take your dog for a walk, and when you stop 'buzzing' with all that semi-new shiny knowledge, look around you and try to think about what you see using what you learned. Write down your questions. When you come home, calculate what proportion of your questions you have already answered in class (and so expect to turn up on the test.) If all of them, then you are either lucky, not interested in the course, or your dog needs more exercise:) if there are a few you haven't thought of before... it's worked.