This document provides an overview of different theories of grammar: - Traditional grammar focuses on parts of speech and prescriptive rules of English based on Latin. - Formal grammar analyzes sentence structure but does not account for meaning. - Functional grammar views language as a tool for making meaning and analyzes whole texts and how meanings are constructed based on social context. - The document uses examples to illustrate how these grammars differ in their units of analysis, concerns, and views of language and provides exercises for students to practice analyzing texts using functional grammar.