"Active Learning" offers suggestions for making students more active learners during traditional lectures and describes a variety of other strategies to help instructors "activate" their classes. Students use critical and analytical thinking skills during active learning, and this program includes examples and activities that illustrate both. Adult students prefer active learning, However, risks exist that may discourage instructors from using active learning strategies. Those risks are identified and suggestions are offered for managing them. A three-step method is suggested for developing an active lesson, and a comprehensive model is offered that can be used as a guide for creating active learning strategies.