Grade Me block which shows a teacher all of the assignments and manual quiz questions (essays and file responses) that have been submitted, but not graded, is updated to a newer version with fixed bugs for quiz questions not showing as needing marking.
Grade Me is a very popular block in the Moodle plugins database and is currently being maintained by Linda Vanderbaan & Tyler Bannister and is downloaded for more than 16k times till date and supported for Moodle 2.3 onwards.
The block is configured to work with groups that is, teachers will only see the assignments submitted by students if they are both members of the same group. You can install the block on the Front Page and it will show ungraded assignments for ALL courses, and if you put the block on a course page it will only show the ungraded assignments for that course.
The Grade Me block is also awarded by Moodle Hat award. You can download the latest version of this nice and very helpful block from this link.