The guide is one section of a resource kit designed to assist Peace Corps language instruction coordinators in countries around the world in understanding the principles underlying second language learning and teaching and in organizing instructional programs. This section outlines basic principles of second language learning and teaching. An introductory chapter provides an overview of the contents and suggestions for assessing one's own knowledge about language teaching and learning. Subsequent chapters focus on: basic principles of Peace Corps training and communicative language teaching; techniques of classroom management, including use of learner-centered activities, intervening in those activities, error correction, having discussions, and concluding a class session; and classroom activities (general language learning, listening, grammar). (Contains glossaries of linguistic terms and of Peace Corps terms and acronyms and lists of commercially-available materials, publications, and videos.) (MSE)