Think-Pair-Share is an interactive teaching strategy that encourages student engagement and collaboration. It involves three steps: first, students think individually about a question or topic, allowing them time to formulate their ideas. Next, they pair up with a partner to discuss their thoughts, promoting communication and deeper understanding. Finally, pairs share their insights with the larger group, fostering a collective learning experience. This method enhances critical thinking and helps students articulate their ideas in a supportive environment.