How to Create Group Assignments   
Create Groups , then create an assignment for that group. Submissions then are from a group of students for grading. You may assign a different grade to each group member if necessary.

 Grading Group Assignments  
An assignment that has been submitted, but not graded, is indicated with an exclamation mark—the needs grading icon.

 Group Assessments
Individual grades or one group grade shared by all members? Find out how....

 Grading Group Discussions
Unlike other graded group activities, when you set a group discussion board to graded, each member is graded independently of other group members. Each group member must make the designated number of posts to earn a grade. You don't assign a group grade for contributions to the group discussion board.