This document provides an overview of functional grammar. It discusses three main types of grammars: traditional grammar, formal grammar, and functional grammar. Traditional grammar focuses on parts of speech and prescriptive rules, but does not account for meaning or context. Formal grammar analyzes sentence structure but typically ignores meaning. Functional grammar views language as a tool for making meaning and analyzes whole texts and how their structures construct meaning in different contexts. It examines language in use rather than as an abstract system. The document emphasizes that all meaning is situated within a context of culture and situation.