Notifications for updated assignment scores and/or past due assignments

It would be HUGELY helpful as a teacher to be able to receive a notification when students complete past due work and/or score higher on an already completed and past due assignment.  Presently, it can take hours having to sort through assignments for students throughout the semester to identify whether old assignments are now completed or have been improved upon.  The option to receive a quick email or notification within Khan Academy when this happens would be a most appreciated! What are your thoughts?