“The only thing that matters is what students do with it. No matter how well the feedback is designed, if students do not use the feedback to move their own learning forward, it’s a waste of time. We can debate about whether feedback should be descriptive or evaluative, but it is absolutely essential that feedback is productive.
Add to that concept a second related principle: Feedback should be more work for the student than it is for the teacher. Teachers who internalise and practice feedback based on these precepts will be well on their way to teaching that improves learning.”