With that in mind:
1. In either the "Returned files" or "Returned" columns, show the latest date & time of submission.
This has been implemented.
2. In the "Solved" column, show the date & time the submitted work was marked as "solved".
I'm thinking of changing the column solved to be an icon (like "returned" field is right now), and then the tutor would have to select from the action list "Mark as solved", so that we have one checkbox less.
3. Maybe highlight the "Returned" date if it is greater than the "solved" date. This would emphasize which exercises have been updated and need to be revised again.
Yes, that could be done...
Another possibility might be to show the actual difference in days/hours and allow that to be sorted upon? Thus the oldest, newly submitted exercises could be easily detected and dealt with accordingly.
I don't like displaying the difference date... opinions?
At the very least having these two dates (with one highlighted or not) would greatly aid in detecting submissions that are still in progress.
I'm thinking about adding a new icon to identify the updates, what do you think?
Since a teacher is correcting an Exercise, they could find it useful to be able to send an email to a student, letting him know everything is ok, or that some more work needs to be done.
What about automatically send e-mail with the content of "Notice" field? What is "notice" field intended for?