Find some specific tasks or concepts that would suit the sharing of new information among a team. Draw up full briefing notes and gather materials for each team. Find somewhere quiet for each group to work. Produce sufficient copies for everyone to have a copy of each team's briefing document.
Participants should work in teams of three or four. Each team has its own separate task or topic – the As study one topic, the Bs another, and so on. The teams read your materials and/or share their experiences. They become 'experts' at the team topic or task. Every team member must make his or her own notes.
Participants now form new teams, each having an 'ex-A', an 'ex-B', an 'ex-C', and so on. The 'expert' on topic A now trains their new colleagues, while 'ex-B' and 'ex-C' learn. Then rotate roles so that everyone takes turns as 'trainer' and 'trainee'. It ends when everyone has explored all the topics.