The document describes the Think-Pair-Share (TPS) collaborative learning strategy. TPS involves 3 phases: 1) students think individually about a topic question for 1-3 minutes, 2) students pair up to discuss their answers to a follow up question for 5-10 minutes, and 3) selected pairs share their responses with the class for 12-15 minutes while the instructor facilitates discussion. TPS engages students actively, allows them to learn from each other, and helps instructors achieve benefits of small group work in large classes through formative assessment.