If you believe there was a mistake in grading one of your assignments, please email the GSI within 5 days of the assignment's return. Include in your email a description of the error. We will review your assignment and correct any grading errors we find. Please be aware that this can either increase or decrease your grade, since we sometimes find errors that worked in your favor. In addition, if you refer us to another student's assignment to support your argument for why you should have received more points, and they received those points in error, we will correct the error in their grade, as well.