I have a few strategies I use to encourage my preschoolers to work in groups. I am adamant about sticking to hands-on activities only, which are more likely to turn into a group activities versus individual work. Also, I like to take activities that can be done on an individual basis and turn them into group work. For example, in my previous position instead of having each student draw a separate picture, I allowed them all to work on a collaborative mural that hung on our wall for the remainder of the year. It encouraged team work and open communication among the students.