In my humble opinion, haha cx I would say Hamlet's tragic flaw would be his indecisiveness within the whole book in being unable to make decisions. Whether it was the uncertainty on whether or not to avenge his fathers death or more minor topics. Hope this helps!! Let me know if you need anymore help or further explanation! :)
because giving them lower grades can decrease their confidence in how they did but if you give them feedback they can see how they can improve themselves