@surelyhuman Rewards and feedback aren’t the same thing. Grades aren’t a very good form of feedback (and are a much “lazier” form of feedback for a teacher than giving more detailed feedback). Some of DD’s profs are better than others about offering detailed feedback. It doesn’t seem to correlate with the grades they give, though. If you want to learn more, I’d recommend looking for profs who are generally excellent but who also have a reputation for offering detailed and preferably timely feedback (whether on papers, or if you’re willing to go to office hours, in that forum). Don’t look for profs who are “harsh graders” per se (any more than you’d look for profs who are “easy graders”), because you may be frustrated with lack of feedback.