Groups must be done if a teacher wants to have group submissions for assignments. Another way is of course to ask students to submit their assignments individually, but to mark the names of the students in the document. However, enabling group submission makes it possible to grade and give feedback to many students at the same time (=if the whole group of students get the same grade and feedback).

On any course area, a group is the basic mode of user division. Groups can be named A, B, C, D, E, F and so on or with any other name you choose. Each group may have one to many hundreds of members, but the idea is to keep the basic groups quite small. This is important especially if you want to use groupings in addition to groups. Groupings are actually accumulations of groups, so groups have to be created first and then you may add them to groupings. For example groups A, B and C may be combined into a grouping and groups D, E and F may be combined into another grouping. This enables teachers for example to define which small groups are supervised by a certain teacher. Alternatively, different groups may be given selected assignments based on the larger grouping.

However, it is not possible to choose only some students from group A, B and C and put them into grouping 1 and then take the rest of the students from groups A, B and C and put them into another grouping. Members of a single group always belong to the same grouping as well.