A learning strategy you might find effective is an adaptation of the Jigsaw approach. Jigsaw was developed in the early 1970’s by Elliot Aronson. This short video describes a version of the Jigsaw approach adapted for live online sessions. It requires less movement between groups and includes an optional assessment step. The Adapted Jigsaw can also be used as a group learning strategy in asynchronous online courses.
Groups in Live Sessions: Adapted Jigsaw
Learn at a Distance 