How Do Brain Storms Work? A Complete Guide to Better Ideas
Most brain storms end the same way: a whiteboard full of safe ideas and a drained team. The loudest voice wins. Quiet people stay silent. Nothing gets built. This guide fixes that. You will learn how to run brain storms that surface fresh, usable ideas, with steps, templates, and rules backed by research.
Quick answer:
Brain storms are timed sessions where people generate many ideas fast. Participants hold back judgment, build on each other’s thoughts, and select the best ideas afterward.
What Are Brain Storms and Why Do Teams Use Them?
Brain storms give people a safe space to share ideas before anyone judges them. Quantity comes first. Quality comes second.
Teams use the method for product names, campaign angles, and process fixes. Students, writers, and founders use it alone, too.
| Element | Meaning | Example |
|---|---|---|
| Goal | Produce many ideas quickly | 30 ideas in 20 minutes |
| Core rule | Defer judgment | No “that won’t work” until later |
| Output | A raw idea list | Sticky notes or a shared doc |
| Next step | Sort and select | Dot voting |
Where Did Brain Storms Come From?
Advertising executive Alex Osborn created the method at the agency BBDO in the late 1930s. He described it in full in his 1953 book Applied Imagination.
Osborn built his sessions on two principles: hold back criticism and chase volume. Those principles still anchor modern brain storms.
| Year | Milestone | Key entity |
|---|---|---|
| Late 1930s | First group idea sessions | Alex Osborn, BBDO |
| 1953 | Applied Imagination published | Charles Scribner’s Sons |
| 1987 | Productivity study on group sessions | Diehl and Stroebe |
| 2000 | Research on written idea sharing | Paulus and Yang |
| Today | Design teams use structured formats | Design thinking, design sprints |
Do Brain Storms Actually Work?
Yes, but the classic group format has a flaw. Diehl and Stroebe (1987) tested it directly. People working alone produced more ideas than the same number of people brainstorming together.
Three forces drag live groups down:
- Production blocking: People wait their turn and forget their idea.
- Social loafing: Individuals relax because others carry the load.
- Evaluation apprehension: People hold back ideas to avoid looking foolish.
Groups still win on buy-in and on building each other’s ideas. Hybrid brain storms capture both benefits: write alone first, then discuss together. Paulus and Yang (2000) found that written idea sharing reduces blocking.
| Problem | What you see | Fix |
|---|---|---|
| Production blocking | Long silences, forgotten ideas | Silent writing round |
| Social loafing | Two people do all the talking | Round-robin sharing |
| Evaluation apprehension | Safe, boring ideas | Anonymous idea cards |
What Rules Make Brain Storms Effective?
These rules echo Osborn’s originals. Apply them every time.
- Defer judgment until the selection phase.
- Aim for volume, not perfection.
- Build on ideas with “yes, and.”
- Welcome wild ideas. They often spark practical ones.
- Allow one conversation at a time.
- Keep the problem statement visible.
| Rule | Why it matters | Facilitator move |
|---|---|---|
| Defer judgment | Protects psychological safety | Pause anyone who critiques early |
| Go for volume | More ideas raise the odds of a great one | Set a target number |
| Build on ideas | Combines thoughts | Ask “what would make this bigger?” |
| Stay on topic | Prevents drift | Post the question on the wall |
How Do You Run Brain Storms Step by Step?
Follow this sequence for a 45-minute session:
- Frame the problem as a question. Example: “How might we cut onboarding time in half?”
- Invite 5–8 people with different viewpoints.
- Set a timer and share the rules.
- Write silently for 5–10 minutes.
- Share ideas round-robin, one per person per turn.
- Build and combine the strongest threads.
- Cluster similar ideas into themes.
- Vote and name an owner for each winner.
Preparation decides the outcome. Send the question a day early so people arrive with ideas.
| Step | Time | Output |
|---|---|---|
| Frame the problem | 5 min | One clear question |
| Silent writing | 10 min | Individual idea lists |
| Round-robin share | 10 min | Shared idea wall |
| Build and combine | 10 min | Stronger concepts |
| Cluster and vote | 10 min | Ranked shortlist |
Which Brain Storms Techniques Work Best?
Pick one technique per session. Mixing three confuses people.
| Technique | How it works | Best for |
|---|---|---|
| Brainwriting | Everyone writes ideas, then passes papers | Mixed-personality groups |
| Mind mapping | Branch ideas from a central topic | Exploring a broad theme |
| SCAMPER | Substitute, Combine, Adapt, Modify, Put to another use, Eliminate, Reverse | Improving an existing product |
| Six Thinking Hats | Rotate viewpoints (Edward de Bono’s method) | Balanced evaluation |
| Reverse thinking | Ask “how could we make this fail?” then flip answers | Breaking mental ruts |
| Starbursting | Generate questions (who, what, where, when, why, how) | Early-stage planning |
| Crazy 8s | Sketch eight ideas in eight minutes | Fast design concepts |
Solo vs. Group: Which Brain Storms Fit Your Goal?
Neither format wins every time. Match the format to the outcome you need.
| Factor | Solo | Group |
|---|---|---|
| Idea volume | Often higher | Lower without structure |
| Buy-in | Low | High |
| Speed | Fast | Slower |
| Diversity of input | Limited | Broad |
| Best use | First draft of ideas | Refining and committing |
Run solo brain storms first to collect raw ideas. Then bring the group together to refine them.
How Do You Run Remote Brain Storms, and Which Tools Help?
Remote sessions work well when you remove live-talking bottlenecks. Use shared canvases and timed silent rounds.
- Share the question 24 hours ahead.
- Use a shared board so everyone types at once.
- Keep sessions under 45 minutes.
- Turn on cameras only if the group wants them.
| Tool | Best for | Cost note |
|---|---|---|
| Miro | Visual boards, clustering | Free tier available |
| Mural | Workshop templates | Free tier available |
| FigJam | Design teams | Free tier available |
| Google Docs or Sheets | Simple list building | Free |
| Paper and pens | In-person silent writing | Nearly free |
Which Mistakes Kill Good Ideas Early?
Most failed sessions share the same few errors.
| Mistake | Cost | Fix |
|---|---|---|
| Vague problem statement | Scattered ideas | Write one “How might we…?” question |
| Too many people | Social loafing | Cap at 8 |
| Senior person speaks first | Others copy their view | Let leaders speak last |
| Live criticism | Silence | Enforce the no-judgment rule |
| No selection step | Ideas die on the wall | Vote before you leave |
| Sessions over 45 minutes | Fatigue | Break into two sessions |
How Do You Turn Raw Ideas Into Decisions?
A wall of ideas has no value until you choose. Use a simple filter.
- Group similar ideas into clusters (affinity clustering).
- Give each person 3–5 dots to vote.
- Plot top ideas on an impact-versus-effort grid.
- Assign one owner and one deadline per winner.
| Method | Purpose | Time |
|---|---|---|
| Affinity clustering | Find themes | 10 min |
| Dot voting | Surface group favorites | 5 min |
| Impact-effort matrix | Rank by payoff and cost | 10 min |
| Owner and deadline | Ensure follow-through | 5 min |
How Do You Know a Session Worked?
Track results, not just energy in the room.
| Metric | What it tells you |
|---|---|
| Ideas generated | Volume of output |
| Ideas shortlisted | Quality of filtering |
| Ideas shipped within 30 days | Real-world value |
| Participation spread | Whether quiet voices spoke |
| Team feedback score | Whether people want another session |
Disclaimer
This article offers general educational guidance on creative methods. It is not professional business, legal, or psychological advice. Results vary by team, topic, and facilitation skill. Check the cited sources before you rely on them.