Group cohesion activities are an important part of any group. The purpose of them is to bring the group together so that they gel and work well together as a group. If a group never gels, then it may mean that they never really relax enough to learn and so it is an essential aspect of group work, especially in the first few weeks. Ideally group cohesion activities should be short, fun, and easy and you should also ensure that everyone participates. As the group progresses, you may also choose to add in a few more challenging group cohesion activities.