Ready to use! This is a complete all-in-one grammar unit. The unit contains a 10-day pacing guide, two PowerPoint presentations for direct instruction, worksheets, interactive notebook pages, a quiz, and a board game. In this unit, students will learn the meanings of the prefixes un-, dis-, re-, and pre-. They will learn how the prefixes change the meaning of a word. Students will practice writing sentences using words that begin with prefixes.