How can I change the due date on an assignment after the date has passed?

1. Click on 'Assignments & Progress' in the upper navigation bar.
   
2. Select your class from the drop-down menu.
   
3. Click on the 'Past Assignments' tab.
4. Click on the gear icon.
   
5. Select 'Extend Due Date' from the drop-down menu.
   
6. Click on the calendar box.
   
7. Select the new due date.
   
8. Click the blue 'Change' button.