Sentence structures are rarely varied. Contains a significant number of serious grammatical errors. Minor grammatical errors detract from the main points in the discussion. Discussion is basically logical and each paragraph supports the thesis, but lacks depth and insight. Lack a clear thesis that reflects an opinion about the topic.
Discussion is general, vague, undeveloped, and often digressive, rambling, and incoherent.
Contains numerous serious grammatical errors which overwhelmingly detract from the discussion. The difference between the two grades depends on the number and severity of the errors.