You can create a group assignment and release it to one or more groups within your course. Each group submits one collaborative assignment and all members receive the same grade. You can create a single assignment and assign it to all groups, or create several unique assignments and assign them to individual groups. Only you and the members in a group have access to the assignment.
The overall grade for an assignment can appear to users as a numeric value, letter grade, percentage, text, or as complete/incomplete, depending upon the primary display choice for the column created automatically in the Grade Center for the assignment.