One of the teaching & Learning research areas that I have been interested in lately is how much students learn through the feedback we give them after grading assignments. (Ctrl+Click here for a paper that we recently presented at SoTL commons in this area). I always try to give careful feedback students during grading and sometimes I invite the students for an interview where they demonstrate that they took the feedback into account when correcting their mistakes. See below for an example. Click on image .