The document discusses grammar and its role in language teaching. It begins by defining grammar as the set of rules that govern how words combine to form sentences. It asks whether grammar should be taught in schools and how it could be taught effectively. It discusses different approaches to teaching grammar, including both explicit instruction of grammar rules and implicit teaching through exposure to language examples. It emphasizes the importance of teaching grammar in context and communicatively. The document also discusses various techniques and activities that can help teach grammar in an engaging way, as well as the different components of communicative competence.