This is the fourth 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 PowerPoint 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 4 covers using introductory phrases: prepositional, participial, and infinitive. Each of the other units follow grammar topics. Answer keys included for each worksheet, practice quiz, and final quiz. You will love these!