 Groups function is a very useful way for teachers to micromanage course participants and activities. Go to the settings block, course administration, users, groups. We could auto-create the groups and populate them with course participants. What we'll do here is manually create, give each group a name, save changes. So we select a group, add remove users. We select potential members and add them to the chosen group, back to groups. Potential members will have a user account and they are also enrolled as course participants to appear on the given list. It's also fair to say that course participants don't have to be members of a group. On the same token, course participants can belong to multiple groups. So we can now see three groups are each populated with two members and that's the number indicated in brackets there after the group name. So where groups becomes very useful is with activities such as discussion forums or assignments, glossaries, wikis and so forth. We're able to micromanage users. So just to show you where this setting is, we turn editing on, add an activity. And let's say for example it's a discussion forum. So we get the forum name and an introduction. Down at the common module settings, by default activities are set. Group mode is no groups. We can go either separate or visible groups.