Grouping: Individual
Take-home: Large balancing sculpture
Key ideas: Center of mass, torque, lever arms, counterweights, stability.
Start with: Show a deliberately bad example and an exaggerated large balancing example.
Success check: Sculpture balances reliably from a narrow support point.
Try changing: Counterweight mass; distance from pivot; crossbar length.
Preparation: Print skewer ends; sort/measure counterweights; prepare good/bad examples.
Lesson flow: Day 1: Center-of-mass demo → assemble crossbars → add counterweights → balance → deliberately move one weight and retest
Safety and cleanup: Teacher manages sharp skewer ends; use printed end caps; keep weights securely attached.
https://www.tinkercad.com/things/5TAjMzgZZE6-thin-skewer-ends/edit?returnTo=%2Fdashboard%2Fdesigns%2F3d