"an essential ingredient of learning is feedback, often received in the form of grades" "Recommend resources for learning" The best thing someone can do to he

"an essential ingredient of learning is feedback, often received in the form of grades" "Recommend resources for learning" The best thing someone can do to help another learner is to teach them how to evaluate their own work. If there is an answer key to the book, that's great. If there isn't, then they should learn how to use the worked examples to evaluate their learning. Feedback is important as you say, but having a long time delay between completing something and the evaluation through a grade isn't helpful. It can be demotivating, lead to reinforcing or practicing bad habits, or not making the connection between seeing continuous improvement.