This is the third of a three-part workshop covering basic grammar. The course continues on from where Grammar Refresher 2: Word Usage left off. In this unit, students will learn the correct use of commas, periods, quotation marks, ellipses, and other punctuation. Faulty punctuation can make your writing difficult to understand and can reflect poorly on you at school or work. By the end of this crash course, you'll be able to identify and avoid common mistakes and to produce writing that is free of glaring punctuation errors. Curriculum: Four week course. No textbook required. No prerequisites. All students may enroll in this course.