Writing Persuasive Letters | Scholastic Writing Persuasive Letters. In this unit, students become aware of the techniques used in persuasive oral arguments and apply them to independent persuasive letter writing activities. Objective. Students will: Work in small groups to brainstorm ideas and organize them into a Persuasive Writing | Classroom Strategies | Reading Rockets Persuasive writing is a form of nonfiction writing that encourages careful word choice, the development of logical arguments, and a cohesive summary. Young children can be guided through a series of simple steps in an effort to develop their persuasive writing skills.