In Course Navigation, click the People link.
Click the Groups tab.
You can also access your User Groups through the Settings menu. Click the Options icon [1] and click the View User Groups link [2].
Click the Add Group button.
Name the group by typing in the group name field [1].
Determine who can join the group by clicking the Joining drop-down menu [2].
If you want anyone in the course to join your group, choose the Course members are free to join option.
If you want to create a group with only specific people in your course, choose the Membership by invitation only option.
Invite users to join the group by clicking the checkbox next to each user's name. Users are listed alphabetically by last name.
Notes about invitations and group membership:
Click the Submit button to create a new group.
The new group you created will now appear in your course groups.
If you need to change the details of your group later, such as renaming the group you created, click the Edit Group [1] button.
To switch between groups you have created, click the Switch Groups [2] link.