Studying in groups can be fun, but be careful that you do not spend more time socializing than studying. If you are going to use a study group, make sure that you include people who are do well in the class. There is always someone in the class who loves to show off how much he or she knows. This can be a very good person to have in your study group. Make lists - there are always too many things to remember, so write it down.
Highlighters are over rated.