This five-level series progresses with students as they grow in confidence and ability from sentence level (Book 1) through paragraphs (Books 1?3) and essays (Books 3?5). Each unit leads writers step-by-step through the process of prewriting, writing a first draft, revising, and editing before producing a final draft. Not only do students write an entire paragraph or essay in each unit, they are also given plenty of practice at the sentence and word levels.