Sentences show a variety of purpose and pattern. Diction is chosen with clear awareness of audience and purpose. The essay has a clear central idea. The plan of the essay is clear with an identifiable introduction and conclusion. Generalizations are supported by details.
Paragraphs are unified and coherent.
Transitions are clear. Sentences make sense and conform to conventional patterns. Subjects and verbs agree. Verb tenses are consistent. Punctuation is conventional.