Hi Lisa: Many classes are difficult to judge exact time utilization, or depending on the class dynamic, there may be more or fewer questions than planned for. Reviewing material covered, giving worksheets that supplement the material, or involving student in small group discussions are usually successful and productive use of time if extra time becomes available. Your method of covering the essentials first to be sure at least this material gets covered is good. I've found not all topics can be separated into components, however. Still, it's a good plann. Regards, Barry