This document discusses how the text "Sociolinguistic Patterns" is relevant to understanding language change. It explains that sociolinguistics examines how social factors like class, gender, and age influence language use. The text contributes to an analysis course by demonstrating how language varies based on these sociolinguistic patterns. It also aids future teachers by providing guidance on English variations related to context. In conclusion, the text helps students, especially future teachers, comprehend how and why a language changes depending on its social uses.