Bring your students;#39; writing skills to the next level using lessons based on the “generative” principle of instruction. Each of the unit;#39;s lessons have students create the structures themselves as opposed to simply recognizing and identifying.Unit Covers Six Comma Rules: Introductory Medial Terminal Items in a series Two adjectives Compound sentencesIncludes 22 lessons, two tests, and answer key.Middle school, high school. Reproducible. 32 pages.Unit Download: PDF. Adobe Reader required to view PDF.Print Unit: Loose-leaf paper. 8 x 11 inches. Plastic storage envelope.