This document discusses different teaching approaches, strategies, methods and techniques. It defines each term and explains the relationship between them. It provides examples of various teaching approaches like teacher-centered vs learner-centered, subject matter-centered vs learner-centered, and "banking" approach vs constructivist approach. It also discusses direct/expository approaches like direct instruction and demonstration method, and indirect/guided approaches like inquiry-based learning and problem-solving method. Cooperative learning and peer tutoring are also explained.