Marshmallow Tower Tests Planning

A team building exercise that demonstrates how early testing and iteration beats careful planning. The exercise reveals how different groups approach problem-solving and innovation.

The Exercise Setup

• Teams get limited supplies:
  • Spaghetti sticks
  • One marshmallow
  • String
  • Tape
• Goal: Build highest possible tower with marshmallow on top
• Time limit: One hour

Common Adult Approach (The Wrong Way)

• Break into corporate-style planning mode
  • Assign roles and duties
  • Spend time sketching and planning
  • Build elaborate structure
  • Place marshmallow at very end
• Result: Tower typically collapses
  • Marshmallow weight underestimated
  • Failure point discovered too late
  • All previous work wasted

Children's Approach (The Right Way)

• Start with immediate testing
  • Put marshmallow on sticks right away
  • Discover weight issues immediately
  • Learn quickly that multiple sticks needed
• Result: More successful towers
  • Risk identified early
  • Iteration based on real feedback
  • Better final outcome

Key Lessons

• Test riskiest assumptions first
• Don't back-load potential failure points
• Quick iteration beats perfect planning
• Early feedback enables better solutions
• Simple, direct testing reveals truth faster than analysis

This exercise parallels startup and creative work:

• Don't over-analyze before testing
• Get feedback early and often
• Learn through doing rather than planning
• Embrace initial "muddy water" phase