One question that often comes up is, "Why can't I provide group grades in Assignments?"
I was playing around in Oncourse the other day, and it turns out there actually is a simple way to do this.
First, let's get this important operational detail out of the way. When you give the group assignment, you need to communicate clearly with your students how you want them to submit. The best thing is for each group to choose in advance ONE person who will be responsible for submitting the assignment. The worst thing is for each person to upload their own version of the assignment, leaving you to figure out which version is the official one.
Next, grading. Once the assignments have been submitted, one for each group, read the assignments and decide what the group grades will be. In Oncourse, click the Grade link next to the title of the assignment. You will see a page named, Submissions for "Name of Assignment Here". Beneath this title you should see a "View" dropdown box. Click the little arrow to reveal the list of groups in your site, and choose one - let's say it's Group A. The page should refresh and you will see only the members of Group A.
Now comes the simple part. Just above the student list you should see a box labeled, Assign this grade to all participants without a grade.
Type in the grade you want to assign for that group, and click the Assign button.
Voila! Your group has been graded! Wash, rinse, and repeat for the other groups.
Happy Grading!