1-2-4-All: Get Every Voice Into the Conversation
1-2-4-All is a facilitation method (one of the "Liberating Structures") that builds ideas up in stages: think alone for a couple of minutes, compare in pairs, merge into groups of four, then have each four share its best idea with the whole room. Each stage tests and strengthens ideas in a low-pressure setting, so quiet contributions survive instead of getting buried.