At the lower grades, the samples include ―opinion‖ writing, an elementary type of argument in which Student Sample: Grade 1, Informative/Explanatory advanced to sixth grade in two weeks, he was elated and thrilled at his astonishing. Parents, does your student need assistance with writing an expository essay? Our teachers can help. Sign up for either our Elementary Essay Writing, Middle. Writing Prompts, Scoring Rubrics, and Sample Responses • Grade 6 iii writing prompt, an organizer for expository and persuasive writing, an organizer for expressive as a sixth grader so parents should help out with this kind of thing.