This monograph presents a synthesis of the literature on empirically supported effective teaching principles that have been derived from research on behavioral, cognitive, social-learning, and other theories. After an introductory section, the first section discusses characteristics of empowered and ineffective learners. Motivational, cognitive, academic, and social characteristics are identified. The next section provides an in-depth examination of 10 effective teaching principles. Each principle is explained in terms of an overview of research, definitions and examples of terms, overview of instructional approaches, and limitations and barriers. Principles addressed cover: (1) engagement time; (2) success rates; (3) content coverage/opportunity to learn; (4) grouping for instruction; (5) scaffolded instruction; (6) addressing forms of knowledge; (7) activating and organizing knowledge; (8) teaching strategically; (9) making instruction explicit; and (10) teaching sameness in the curriculum. The last section examines effective lesson structure and critical presentation techniques. It reviews such variables as modeling, verbal rehearsal, gaining attention of learners, goal-setting, practice, and the use of instructional organizers and then addresses teacher behaviors such as teacher questioning, managing student responses, pacing, and providing feedback. (Contains approximately 350 references.) (DB)