The document discusses functional grammar and its differences from traditional and formal grammar. Functional grammar views language as a resource for making meaning rather than a set of rules. It analyzes language at the level of whole texts rather than individual sentences and is concerned with how meanings are realized rather than sentence structure. Functional grammar describes the logical structure of language using a rank scale of morpheme, word, group, phrase, clause, and clause complex. It analyzes clause constituents such as participant, process, and circumstance based on their functional role in conveying the message. This perspective has implications for more effective language teaching by allowing exploration of language forms and functions.