This document provides background information and comparisons of various language teaching approaches including Audiolingualism, the Direct Method, the Natural Approach, Total Physical Response (TPR), and the Communicative Approach. It discusses the origins and key aspects of each approach, including underlying theories of language and learning, goals and objectives, syllabus design, types of learning activities, roles of teachers and learners, and the use of instructional materials. The approaches range from those that are more teacher-centered and focus on grammar and repetition, like Audiolingualism, to those that are more learner-centered and emphasize meaningful communication, such as the Communicative Approach.