The document discusses providing concise summaries of expository and narrative writing in 3 sentences or less. It recommends that students identify the main idea and supporting details from text features like subheadings. For expository writing, students should state the main idea and give a detail from each subheading. For narrative writing, students should state the title, main idea, setting, beginning, middle, end, and author's purpose. The best summaries are brief while still capturing the essential information.