This document provides information about prepositional phrases. It defines prepositional phrases as phrases that start with a preposition followed by a noun. It notes that prepositional phrases can function as adjectival phrases or adverbial phrases. Adjectival phrases modify nouns and pronouns, answering questions like "which one" or "what kind." Adverbial phrases modify verbs, adjectives, or other adverbs, answering questions about time, place, manner, etc. The document provides examples of different types of prepositional phrases and exercises for students to identify adjectival and adverbial phrases. It concludes by noting that noun phrases will be covered in the next class.