1-2-4-All is a simple way to get ideas, questions or solutions from everyone in the room at the same time, not just from the loudest few. People think on their own first, then build on their ideas in pairs and in groups of four, before the best of what’s come up is shared with the whole group.
It’s one of the Liberating Structures, a collection of facilitation methods developed by Henri Lipmanowicz and Keith McCandless, and it’s probably the one most worth learning first. Use it whenever you’d otherwise ask the whole room an open question and wait for the same three people to answer: generating ideas, gathering questions, pooling experience on a problem or testing a proposal before you make a decision.
Method
Ask one clear question, then move through four short rounds that gradually widen the conversation. Keep the timings tight: the method works because there’s no time to wander off topic.
Step 1: Ask the question
Write a single, open question where everyone can see it, for example ‘What could we do to make our team meetings more useful?’ or ‘What’s getting in the way of this project?’. Explain how the four rounds work before you start, so nobody is caught out when it’s time to move.
Step 2: Think alone (1 minute)
Everyone thinks about the question in silence and jots down their own ideas. Don’t skip this bit: it gives quieter and more reflective people time to think before anyone starts talking.
Step 3: Share in pairs (2 minutes)
In pairs, people share their ideas and build on each other’s. Encourage them to look for what seems strongest or most interesting, rather than trying to agree on one answer.
Step 4: Build in fours (4 minutes)
Each pair joins up with another pair. The four of them share what came up, notice where their ideas are similar or different, and pick out the one or two that stand out.
Step 5: Share with all (5 minutes)
Ask each group, ‘What’s one idea that stood out in your conversation?’. Take one idea from each group in turn rather than a full report-back, and capture them on a flip chart or whiteboard. If you need more ideas and have the time, run the cycle again.
Outcome
A set of ideas that everyone had a hand in, gathered in around 15 minutes. Because everyone thinks before they talk, you hear from people who would normally stay quiet. Ideas get tested and improved as they move up through the rounds, and the group feels more ownership of whatever comes out at the end.
Tips for Facilitators
- Spend time on the question: a vague question gets vague answers. Test it before the session: could someone answer it on their own in a minute?
- Use a bell or chime: it’s much easier to mark the end of each round with a sound than to shout over a busy room.
- Hold the silence: the first minute can feel awkward, especially for groups who aren’t used to it. Stick with it.
- Keep the report-back short: one idea per group keeps the energy up. Ask groups to share only ideas that haven’t already been mentioned.
- Plan what happens next: 1-2-4-All is great at generating ideas but doesn’t choose between them. Follow it with Dot Voting or Diamond Ranking to prioritise.
Variations
- Large groups: it works with hundreds of people. In the ‘All’ round, just hear from a handful of groups, or ask groups to post their top idea on a wall or online board.
- Short on time: skip the fours and go straight from pairs to the whole group (1-2-All).
- Sticky notes: ask each group of four to write their standout ideas on sticky notes, one per note, then cluster them on a wall to see the themes.
Accessibility and Online Sessions
Share the question in writing as well as out loud, and keep it visible throughout. During the silent minute, people can write, draw or simply think, whichever suits them. Nobody needs to move around the room: pairs can be neighbours, and fours can form by turning chairs or joining the next table. If anyone is working with an interpreter or live captions, give each round a little more time.
Online, keep the silent minute in the main room with cameras optional, then use breakout rooms of two and then four (or go straight to fours if moving between rooms takes too long). Collect the ‘All’ round in the chat, a shared document or an online whiteboard so everyone can see the ideas building up.
