project2nd Grade1 meetingsMeeting 19

Balancing Sculpture Level 2

Balancing Sculpture Level 2 https://www.tinkercad.com/things/5TAjMzgZZE6-thin-skewer-ends/edit?returnTo=%2Fdashboard%2Fdesigns%2F3d Days: 1 Mode: Individual Take-home: Large balancing sculpture

Teaching & key ideas

Key concepts: Center of mass, torque, lever arms, counterweights, stability. Hook: Show a deliberately bad example and an exaggerated large balancing example. Test / evidence: Sculpture balances reliably from a narrow support point. Variables to change: Counterweight mass; distance from pivot; crossbar length.

Lesson flow

Lesson plan: Day 1: Center-of-mass demo → assemble crossbars → add counterweights → balance → deliberately move one weight and retest Safety / cleanup: Teacher manages sharp skewer ends; use printed end caps; keep weights securely attached.