Halliday's introduction to functional grammar

Halliday's introduction to functional grammar views language as a tool for communication that serves different purposes, like expressing ideas, requesting, or describing. Instead of focusing solely on sentence structure, it emphasizes how language functions in real-life situations and social contexts. The grammar is seen as a resource that people use to achieve specific goals, with choices made depending on what they want to convey and who they are speaking to. Overall, it highlights the idea that language is shaped by its use in social interaction, making it flexible and purposeful rather than just a fixed set of rules.