This document discusses task-based language teaching. It describes three dimensions of language teaching: goal, content, and methodology. It then summarizes different language teaching methods (e.g. grammar translation, audiolingualism) according to these dimensions. A key part of task-based teaching is that it uses tasks (goal-oriented communicative activities) as the core unit of planning and instruction. The document outlines different types of tasks and provides examples. It also describes the pre-task, main task, and post-task phases of a task-based lesson.