Even though students are ultimately responsible for their own learning, the roles we assume as instructors are critical in guiding students’ thinking and behavior. We can take on a variety of roles in our teaching (e.g., synthesizer, moderator, challenger, and commentator). These roles should be chosen in service of the learning objectives and in support of the instructional activities. For example, if the objective is for students to be able to analyze arguments from a case or written text, the most productive instructor role might be to frame, guide and moderate a discussion.