I think a post should be dedicated to an instructor's advice for a student who wants to review her/his assignment. Notice how I didn't say: challenge the grade.

As a student, it's important for you to find out how you can do better next time. You might also want to clarify a comment that your instructor made or verify what a word says (my handwriting is not neat).

Before you make the appointment or schedule a meeting you should do a few things. First, wait 24 hours after getting your assignment returned. You might have had a bad day and the last thing you want to see is something that is not an A (even if you deserved the mark). Then, review your assignment and the course syllabus. If you didn't follow directions, you need to "own" this.

Then, do not come into the meeting angry or ready to cry. Be ready to state your case and then, listen. The instructor will review the assignment with you and give you her/his opinion on the matter. Note that every instructor varies, as some will ask for you to provide a typed explanation with your questions and concerns regarding your graded assignment.

Peace~