The document discusses key concepts in language teaching: 1. An approach reflects theories of language and language learning, such as structural, functional, and interactional theories. 2. A method is a set of teaching procedures that spells out how to teach a language based on an approach. It includes objectives, content, activities, roles, and materials. 3. A technique refers to specific classroom activities used to practice language, such as drills, dialogues, and information gap activities. Anthony distinguishes among approaches, methods, and techniques.