• To facilitate a discussion which is inclusive to the entire group.

Basic Structure:

  • Participants begin in pairs, responding to a discussion question only with a single partner.
  • After each person has had a chance to share their ideas, the pair joins another pair, creating a group of four.
  • Pairs share their ideas with the pair they just joined.
  • Next, groups of four join together to form groups of eight, and so on.
  • Repeat until the whole group is joined up in one large discussion.


  1. Participants could be required to reach consensus every time they join up with a new group.

Adapted from: