The Paper Tower

Teams of four build the tallest free-standing tower they can from paper and tape in eighteen minutes. The reliable finding — teams that build small and test early beat teams that plan for ten minutes and build once — is the kind of lesson that only sticks because people lived it.

What it is good for

• CollaborationWorking a shared problem where no one person holds all the information.
• Problem solvingStructuring an ambiguous problem under a time limit.
• Creative thinkingGenerating options before judging them, and building on other people's ideas.
• CommunicationPractising clear hand-offs, active listening and saying the hard thing early.

What you need

• Twenty sheets of paper and one metre of tape per team
• A tape measure
• A timer

The run sheet

1. Identical kits, no extras (2 min)

   Twenty sheets, one metre of tape, one pair of scissors. Nothing else — no chairs, no walls, no taping to the table. Free-standing means free-standing.

2. Eighteen minutes, visible clock (18 min)

   Call the time at nine minutes, at five, and then every minute from three. The last three minutes are where every tower is won or lost.

3. Hands off at zero (1 min)

   Towers must stand unsupported for ten seconds to be measured. Many will not. Let them fall in front of everyone.

4. Measure and record (5 min)

   Tallest standing tower wins. Record every height including the collapses at zero.

5. The real finding (10 min)

   Ask which teams built something small early and which planned first. Then ask which group is at the top of the board. Do not state the lesson yourself — ask the question and let the room say it.

Facilitator notes

• Resist explaining the moral in advance. The entire value is that they discover it from their own scoreboard.
• Run a second eighteen-minute round if you have time. Scores jump dramatically, which proves the point better than any amount of talking about iteration.
• Works at any scale: four people or sixty, the only limit is how many kits you can lay out.

Debrief questions

Ask these immediately afterwards, not next week. Fifteen minutes of these is what turns the activity into something the team refers back to — see the debrief guide.

1. How long did your team spend before you touched the paper?
2. When did you find out your design would not work — and could you have found out sooner?
3. Where in our real work do we commit to a design before we have tested anything?

Variations