Think-Pair-Share is an active learning technique that can be used in small or large enrollment courses to engage students and encourage them to practice scientific thinking skills. In think-pair-share, students think about their answer to a question, pair with a partner to debate their choice, and then share their answers with the class. In this video showing examples of think-pair-share in action, Kimberly Tanner (San Francisco State University) shares her experience using this method in classrooms of all sizes.