I have to teach what this looks like during the first week of school.
There are a number of great teamwork lessons easily available on the web. I have used one called Marble Ramps for the past few years.
The beauty of this lesson is that it gives me a change to teach group work procedures and reinforce procedures for getting supplies and cleaning up too.
This year I am adding something new to the lesson - a kind-of/sort-of graphic organizer for their notebooks. We are setting up the notebooks tomorrow, so this will be the first item in it.