Your instructor will set certain requirements when he or she submits a video for you to comment on and possibly score. These requirements are described under the Policies heading when you first open the assignment. In the example below you can see that you must view the video and add two comments to complete the assignment.
See Assignment Details to see what requirements you've completed
You will see green check marks next to every requirement you've completed under the Assignment tab of the Video Assignment you're working on.