Each quiz and exam is a tool for practice and study. When you are studying for an exam, pretend you are taking previous exams and quizzes again. Answer the questions without referring to your previous answers. Also use this technique if I distribute study questions. When I present a problem in class or when you review an exam, look for and practice answering a different version of the problem.
Many problems have several obvious variations.
Practice answering each question. The text and study guide may also have material that lends itself to this method. Ask Questions If you do not understand something, ask me about it. If my answer is not clear, ask again. If you prefer, come to my office to ask me.