This link outlines reasons to use groups on-line as well as handy tips for what to include to make them successful. I can see using group activities in my course so learners can collaborate on discussing cases and brainstorm with one another about how to think logically about what needs to happen before an assessment occurs. This fits with my practice as I believe we generally don’t work in a vacuum and need to talk/work with our colleagues to best serve our clients. This activity means learners use their interpersonal skills.
I plan to use group work in my course and will definitely keep the tips in mind in particular the ones around optimal group size.