They show revision, some development of the ideas, and evidence of the basic components of persuasive writing. Errors are evident. Pieces represent average college work. D Pieces do a weak job of meeting requirements. They show some evidence of revision and thought.
Mechanical errors abound.
Pieces represent below average college work. F Pieces do an unsatisfactory job of meeting requirements. Errors impede meaning. Pieces represent unacceptable college work. It may be an exercise or quiz based on the reading assignment, prewriting for an essay, a draft, feedback on classmates' writings, etc.