This document discusses inquiry-based learning (IBL), a student-centered teaching method developed in the 1960s. IBL involves students developing their own questions, making observations, and doing research. The teacher's role is to give students tasks and facilitate their learning, while students take the lead. The document provides tips for teaching IBL, including establishing classroom rules and motivating students, and concludes that IBL can incorporate field work, case studies, investigations, and research projects.