by Graham Bowman.
You could use yourmoodleurl.com/my to see all assignment with links to ungraded ones. However it's not very user friendly. You could add a block called progress and set it to monitor assignments based on if they have been graded, you can then see an overview of students with red / green grid to see ungraded ones, although not submitted will also be red. A third option is a block called ajax marking which shows a list of ungraded assignments in the sidebar.