Mental Models Workshop

Purpose

The Mental Models Workshop helps participants identify the invisible frameworks they use to interpret reality. By surfacing, sharing, and stress-testing these models, teams reduce blind spots, understand disagreements at a deeper level, and make more robust collective decisions.

At a glance

How to run

1. What are mental models? (10 min): Explain: mental models are simplified internal representations of how things work. Everyone has them; they are useful but incomplete. Share examples: "The customer always knows what they want" vs. "Customers rarely know what they need."
2. Elicit models (15 min): Pick a domain relevant to the team (e.g., "How do users adopt new features?" or "Why do projects fail?"). Each person writes their mental model as a simple statement or diagram.
3. Compare and contrast (15 min): Share models in small groups. Identify: Where do models align? Where do they conflict? What evidence supports each model? Where is evidence missing?
4. Stress-test (10 min): For the most impactful conflicting models, ask: "Under what conditions would this model break?" "What would we observe if the other model were true?"
5. Integration (5 min): Can the group construct a richer, more nuanced shared model that incorporates the best of each?
6. Close (5 min): Each person names one mental model they are now questioning.

Materials needed

• Large paper or digital whiteboard for diagramming
• Sticky notes
• Markers
• Timer

Pitfalls & common mistakes

• Defending models as truth: Remind participants that all models are incomplete — "All models are wrong; some are useful."
• Staying vague: Push for specificity. "People resist change" is too generic. "People resist change when they do not understand the benefit" is a testable model.
• Ignoring power dynamics: Whose model dominates in the team? Surface this explicitly.
• No application: Connect insights to a current decision or challenge.

Inclusion & accessibility

• Allow both visual (diagrams) and verbal (statements) expression of models.
• Provide time for individual reflection before group sharing.
• Ensure that junior voices are heard — they often hold different, valuable models.
• Use a digital canvas for remote participation.

Variations

• Pre-mortem integration: Use mental models to predict how a project could fail.
• Customer models: Map internal assumptions about customers and test them with data.
• Cross-functional comparison: Have two teams compare their models of the same process.

When NOT to use this

• When the team needs to move fast and does not have time for deep epistemological work.
• When one person’s model is objectively wrong and the discussion delays necessary correction.
• When participants confuse the exercise with debating opinions rather than examining reasoning structures.

Source & further reading

• Peter Senge, *The Fifth Discipline* (Doubleday, 2006)
• Charlie Munger, "The Psychology of Human Misjudgement" (1995 speech)
• Shane Parrish, *The Great Mental Models, Vol. 1* (Latticework, 2019)