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Brainwriting and the 6-3-5 method

How to run brainwriting and the 6-3-5 method: silent brainstorming that gets more ideas than open discussion, with steps, timings, a template and how to run it online.

Time
15 to 30 min
Group
3 to 8 per sheet
Works
Call or room

6-3-5 Brainwriting Method | Brainstorming Techniques

Ed Tchoi · 6 min · 30K viewsYouTube

Brainwriting is brainstorming in silence. Instead of calling ideas out, people write them down and build on each other's in writing. It usually gets more ideas, and more varied ones, than a spoken brainstorm, because nobody waits for a turn and the first loud idea doesn't steer the rest.

The best-known version is 6-3-5, developed by Bernd Rohrbach in the 1960s: six people each write three ideas in five minutes, then pass their sheet on. After six rounds, the group has 108 ideas in about half an hour.

How 6-3-5 works

StepWhat happensTime
Set upOne clear question at the top of a sheet with three columns and six rows. One sheet per person2 min
Round 1Everyone writes three ideas in the first row5 min
PassEach sheet moves one person to the right10 sec
Rounds 2 to 6Read the ideas above, then add three new ones, ideally building on them5 min each
SortSpread the sheets out, read, and mark the strongest ideas5 to 10 min

It works with three to eight people. With fewer than six, do fewer rounds or give each round four minutes.

Hitchhiking

The rule that makes 6-3-5 better than six people writing alone is building on what's above you. In Ed Tchoi's example, a team is planning a launch for a rugged new pen: one person writes "launch at an extreme sports event", and the next writes "a downhill ice race, because the pens work in the cold". The second idea wouldn't exist without the first. Tell people it isn't copying; it's the point.

A shorter brainwriting round

You don't need 30 minutes. For a 10-minute version:

  1. Ask the question.
  2. Everyone writes ideas on sticky notes, one per note, for five minutes. No talking.
  3. Notes go up on a wall or board. Two minutes to read everything.
  4. Two minutes of writing again: anything the others' ideas sparked.

Online

On a call, use a shared doc or whiteboard with one column per person and the question at the top. Each round, people move one column along. Hide names until the end if you want ideas judged on their own. The chat works too, for a quick version: everyone types ideas but holds off pressing enter, then "3, 2, 1, send". Nobody gets anchored by the first idea.

Good questions for brainwriting

  • How might we cut the time it takes new volunteers to feel useful?
  • What could we try to get more people to our next event?
  • What are all the reasons a learner might drop out after week two?
  • How could we make this report something people actually read?

A "how might we" question works well: it's open, it assumes a solution exists, and it's specific enough to write ideas for.

Common mistakes

  • Letting people talk during rounds. The silence is what makes it work.
  • A question that's too broad, like "ideas for the business". People freeze.
  • Generating 108 ideas and then nothing. Plan the next step: a round of dot voting to narrow them down, straight away.

Run it with Claryoo

Once the ideas are sorted, put the top five or six into a live poll that allows several answers, so everyone picks their favorites from the chat or from their phone in a room. You see the votes live, and the result lands in your summary with what was decided.

More to watch

Use it in a ready session

Free PowerPoint templates with the slides, timings and speaker notes written. Brainwriting and the 6-3-5 method fits in each one.

All free templates →

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