In one minute
Move from solo thought to pairs, fours and plenary to widen participation before synthesis.
A short invitation is answered alone, then in pairs, then in fours, then shared with the whole group. Time boxes and independent starts make more perspectives visible, but the format does not itself grant decision rights.
The problem it addresses
An open meeting lets early or senior speakers set the answer before others think.
A city planning workshop on bus route changes has sixty participants. A few officials dominate while night-shift riders are quiet.
When to use it
- Use 1-2-4-All when an open meeting lets early or senior speakers set the answer before others think.
- The team can examine: A focused question, facilitator, accessible participation route and explicit use for the output.
- A relevant situation is: A city planning workshop on bus route changes has sixty participants. A few officials dominate while night-shift riders are quiet.
When not to use it
Do not use it to replace evidence, accountable judgement or affected people's participation.
Treating airtime as equal influence or using plenary synthesis to erase minority harm.
Inputs required
A focused question, facilitator, accessible participation route and explicit use for the output.
Step-by-step process
1. Bound the decision and name its owner.
Write the scope, decision owner and people who can veto or revise the result before starting the workshop.
2. Collect the necessary evidence and affected perspectives.
Collect and date the necessary evidence: A focused question, facilitator, accessible participation route and explicit use for the output.
3. Frame one question with a clear decision context.
Pose a question participants can answer from experience and explain who will make the eventual decision.
4. Allow one minute of silent individual thought.
Give everyone silent writing time and an accessible alternative to speaking or handwriting.
5. Use pairs to compare and build ideas.
In pairs, ask people to compare observations before advocating one shared proposal.
6. Use fours to distinguish agreement and difference.
In groups of four, retain disagreements and minority harms alongside any common themes.
7. Share selectively and record next decisions and dissent.
Invite a few distinct points into plenary, capture what was not resolved and send the record to the legitimate decision maker.
8. Record the output, next test and review trigger.
Store the artifact with its evidence links, owner, bounded next test and date or trigger for review.
AI automation lens
AI may sort authorised notes and expose missing evidence. It must not invent observations, silently decide for affected people or present a generated map as validated.
Visual model
Text alternative: Frame one question with a clear decision context; Allow one minute of silent individual thought; Use pairs to compare and build ideas; Use fours to distinguish agreement and difference; Share selectively and record next decisions and dissent.
Interactive example
Scenario: A city planning workshop on bus route changes has sixty participants. A few officials dominate while night-shift riders are quiet.
Worked answer: Ask what journey would become impossible, gather solo and small-group input with an accessible written channel, then feed distinct harms into the route decision record.
Facilitation notes
Record disagreements before synthesising; ask whose evidence is missing; state who may revise the result.
Expected output
- An inspectable decision artifact, its assumptions and evidence, a responsible owner, a bounded next test and a review date.
- Share selectively and record next decisions and dissent.
- A named owner, test and review date.
Common mistakes
Treating airtime as equal influence or using plenary synthesis to erase minority harm.
Quality checklist
- The decision and system boundary are explicit.
- Affected people and alternative accounts are included.
- Each important claim has a source or is marked as an assumption.
- An owner, safeguard and disconfirming signal are named.
Template
Knowledge check
Question: What mistake would undermine this method in the scenario?
Answer: Treating airtime as equal influence or using plenary synthesis to erase minority harm.
Related tools
References
- 1-2-4-All — method source (opens in a new tab). Accessed 2026-09-28.
- Independent practice reference (opens in a new tab). Accessed 2026-09-28.
Method profile
The method structures a discussion and a test; it does not establish causal proof or guarantee success.