Prescriptive grammar is a set of rules and guidelines that dictate how a language should be used. It focuses on establishing standards for correct usage, often based on traditional norms. This approach aims to promote clarity and consistency in communication, helping speakers and writers avoid common errors. Unlike descriptive grammar, which observes how language is actually used in everyday life, prescriptive grammar emphasizes ideal forms. It often appears in educational settings, style guides, and grammar books, providing recommendations on aspects like sentence structure, punctuation, and word choice to enhance effective communication.