3. Write it down
That goes for everything – write as you study, especially concepts you’ve been struggling to understand. Doing so will reinforce the concepts and help you remember them better and longer. Making flash cards is a great way to employ this particular tip. It fulfills the purpose of “writing it down” and also provides you with a real last-minute resource that you can use right up until the test begins.
Don’t fall into the trap of making too many flash cards, though. Stick with the stuff you really find difficult to remember. The easier it is, the less time you need to spend on it. As you master concepts, remove those cards from the stack. Right before the test, put them back in and give everything a single, comprehensive, final read-through. You will retain the most information this way.