This document discusses four major methods of teaching English: the Grammar Translation Method, the Direct Method, the Audio-Lingual Method, and the Natural Method. It provides details on the origins, key principles, techniques, merits and demerits of each method. The Grammar Translation Method focuses on translating texts and uses the learner's native language. The Direct Method teaches exclusively in English using real-world examples. The Audio-Lingual Method is based on behaviorism and uses repetition and drills. The Natural Method aims to mimic how children acquire their first language.