If teachers are not vigilant in putting in grades, the assignment appears to be overdue from the student and teacher perspective. If there were an option to remove Overdue when there is no grade at all, that would alleviate this concern. It kind of alarms parents.
Please, please help us find a workaround for this. Other users have suggested creation of a "submitted" button that would trigger a status change on the student side. Tracking these threads:
K12OC-I-18
K12OC-I-803
K12OC-I-2520
K12OC-I-1914
K12OC-I-2097