This is the tenth of 15 one-week SAT Prep units perfect for middle and high school students. Each unit includes: 11-12 vocabulary words based upon 4 Latin & Greek roots and a focused SAT grammar topic with several worksheets and guided notes. Each unit culminates with a practice quiz and a final quiz. The units are set up to be taught for three days, a practice quiz on day four, and a quiz on day five. Unit 10 covers using Parallel Structure: identifying both common and obscure errors in parallelism. It can be as simple as parallel verbs to as complex as participles and prep phrases serving as adjectives. It builds upon previous lessons on clausal structures, too. Answer keys included for each worksheet, practice quiz, and final quiz. You will love these!