1. The document discusses various approaches, methods, and techniques for language teaching. An approach refers to assumptions about language learning, a method is the practical application of an approach through procedures and techniques, and a technique is what occurs in the classroom.
2. Key theories of language discussed are the structural, functional, and interactional views. Methods explained include grammar translation, direct method, reading approach, audiolingual method, community language learning, and total physical response. Later developments presented are communicative language teaching and the presentation-practice-production model.
3. Communicative language teaching emphasizes using language communicatively and developing students' communicative competence through activities that involve information sharing, problem solving and role plays.