Brainwriting is a silent, written alternative to verbal brainstorming that consistently produces more ideas per participant and more equitable participation across a team. Developed by Bernd Rohrbach in 1969 as the '6-3-5' method, it asks each participant to generate ideas independently on paper, then pass their sheet to a neighbour who builds on those ideas before passing the sheet again. The silent format removes the social pressure of speaking up in a group and gives every voice equal weight regardless of seniority or personality.
What It Is
In the classic 6-3-5 format, six participants each write three ideas in five minutes on a sheet of paper, then pass the sheet to the next person, who adds three more ideas inspired by what they see. After six rounds, each sheet contains eighteen ideas, and the group has collectively generated one hundred and eight ideas in thirty minutes. Variations of the method exist: participants might write on sticky notes instead of sheets, or the rounds might be shorter or longer depending on the complexity of the topic. What all variants share is the combination of individual generation and iterative cross-pollination.
How to Run It
Prepare a worksheet for each participant with the HMW question written at the top and a grid of boxes for ideas. Brief participants on the rules: write your ideas, do not evaluate, pass the sheet when time is called. Set a timer for each round, typically three to five minutes. After all rounds are complete, collect the sheets and post all ideas on a shared wall. Review the ideas as a group, clustering related ones and identifying the most interesting directions. Follow up with a structured selection method to prioritise ideas for development.
When to Use It
Brainwriting is particularly valuable in teams with significant power imbalances, such as workshops that include both senior leaders and junior staff, where verbal brainstorming tends to be dominated by the most senior voices. It is also well-suited to remote teams using collaborative digital tools and to situations where the topic is sensitive enough that participants might self-censor in a public verbal format. Use it as a complement to verbal brainstorming rather than a complete replacement.
Tips for Success
Encourage participants to build on the ideas they inherit rather than ignoring them and generating entirely new ideas. The iterative cross-pollination is what distinguishes brainwriting from individual ideation. If a participant gets stuck, they can write a deliberately wild or absurd idea to break the block: the point is to keep the pen moving. After the session, look specifically for ideas that appear in multiple variations across different sheets, since convergence in a silent process is a strong signal of genuine resonance.
