Here are my expectations for your written work:

For an "A":

Has a clearly identifiable, original, insightful thesis. Uses primary source evidence beyond the required readings to support key points being made. Good integration of quoted materials into the work. Does not simply reiterate points made in readings, but provides original and well-reasoned responses and commentary on the question posed. All ideas flow logically, with a clearly identifiable logic and structure. Counter-arguments are anticipated and addressed. Grammar and syntax and spelling are excellent.

For a "B":

Has a somewhat unclear or unoriginal thesis. Structure is generally clear and appropriate, but some transitions may be unclear or lacking strong topic sentences. Uses primary source evidence to support ideas, but without going beyond the materials assigned for the class. Some insightful connections to outside evidence are provided. Argument clearly laid out and supported, but coutner arguments may not be fully addressed. Grammar, syntax, and spelling are good but some errors may be evident.

For a "C":

Has an unclear or unoriginal thesis; may simply restate obvious points from the readings. Structure is unclear, with confusing transitions and weak arguments. Limited use of supporting examples. Quotes not well integrated into text. Limited or no original argument, overly simplistic view of content. Noticeable errors in grammar, syntax, and spelling.

A Failing Grade (D or F):

Shows obviously minimal lack of effort or comprehension of the assignment. Very difficult to understand owing to major problems with mechanics, structure, and analysis.

(drawn in part from Paul Halsall's Fordham University grading rubric.)