The evidence that students benefit when they talk about course content keeps mounting. In the study highlighted below, students in two sections of an introductory zoology course were learning about the physiological mechanisms of RU-486 and about emergency contraception medication. They learned about the topic in three 50-minute lecture periods. Students in both sections were given supplementary reading that reinforced the content, and they were encouraged to ask questions and discuss the content during lab. In addition, students in the experimental bioethics section read and discussed essays that addressed the social, ethical, and legal issues associated with use of emergency contraception. Students in the experimental section then discussed these readings. They managed the discussion, asking questions and raising the issues they wanted to talk about. The instructor intervened only when there was confusion about the content or when prompting and follow-up were needed to advance the discussion.