This document discusses various learner-centered teaching strategies including inquiry-based learning, problem-based learning, and constructivism. Inquiry-based learning involves students working together to solve problems rather than receiving direct instructions from the teacher. Problem-based learning uses open-ended problems to drive student collaboration and reflection, with teachers acting as facilitators. Constructivism assumes that students construct their own knowledge through interaction with their environment and others. Examples provided include using mind maps and creating websites to apply these strategies.