For AP Java, the first couple Monday quizzes are brutal, since they catch students off guard in difficulty. Study wisely during the weekends, making sure that you are able to accomplish problems quick enough as to there are only 40 minutes on a Monday collaboration schedule to finish 10-20 problems, depending on quiz. Use the reference sheet as well, as there may be some essential materials that could help you solve a problem quicker. To be frank, expect 50-70% on your quizzes each week. To compensate for the low grades, joining mesa for extra credit and attending a Saturday makeup session can aid your grade.