Many times, we write quizzes that get progressively more difficult. I would love a feature where students can get grades as they go on a quiz. In other words, they can submit their answer for question 1 and see correct answers and/or comments before they have to submit their answer for question 2. By doing such, a student could determine if they are on a completely wrong trajectory before failing an entire quiz. This can maximize effectiveness of instructor comments, identify key basic misunderstandings before advancing, give immediate feedback for the student, and allow the quiz to be both a learning and assessment tool.
Currently, the only option to do this is to create multiple one question quizzes instead of a single multi question quiz. This is not only cumbersome, but can be awkward within Grades (especially if you have settings to drop high/low scores)