Pretesting performs a number of positive result, especially if there are prerequisite involved. The class I typically teach has two prerequisites, and we have found that a student review can refresh information and processes that haven’t been performed recently. The students are given time to answer the questions, then they are given time to work in small groups. The last step is to review the questions by randomly calling on groups of students, one group at a time to answer the review questions. The review packet is long and the process takes about four hours to complete. It consists of about sixty questions with multiple answers and provides students with a good way to determine what they need to work on.