The document provides guidance on developing supporting details for a topic sentence. It discusses including primary and secondary support points that show, explain, or prove the main point. Examples of primary support could include attendance, experience, and being hardworking. Secondary details further explain the primary supports, such as never being late or having longevity at a job. The document encourages preparing a flowchart to organize ideas and developing a paragraph with complete sentences, specific details, and transitional phrases. Strategies are offered for generating supporting details, such as circling important words, freewriting, and selecting the clearest details that back up the topic sentence.