The theme of this well-known and important book is that effective teaching derives from insight into how children learn; the author stresses, and works out in detail, the practical applications of the psychology of learning to the actions the teacher has to take in the classroom. The introductory chapters deal with the basic requirements of learning; subsequent chapters show how these requirements can be met by habit-training, habit-braking, explaining, teaching for recall, training is skills, and teaching for transfer, and the book concludes with an account of teaching by programming.