 The function takes the groups concept to a whole new level. Grouping is essentially a cluster of groups that we can granularize activities and or resources for in a course. First, ensure that your administrator has enabled the groupings function in the global settings. And as a teacher, come into a course, go to the settings block, course administration. Users, groups, select the groupings tab. It's essential this day is that the groups have already been created. So we can now create a grouping. Let's give grouping a name, save changes. So we now select groups that we wish to add to the given grouping. Back to groupings. It's writing group one and three to grouping A. And we will add group two to grouping B. So we turn to the course page, turn that thing on. So by way of example, where this plays out for a resource, and one we've got there already, it's a file. Just go to edit, update. This is a file at this stage we're sharing with all members of the course. Show advanced under common module settings. You may wish to make it available to a grouping in particular, we'll say grouping A. So that essentially means that any member of grouping A, so essentially members of group A and group C, will be able to access that particular resource. That won't be the case for members of grouping B. So that's our very simple example of how we use the groupings function to granularize resources or activities.