Robot Hand
Robot Hand https://www.sciencebuddies.org/stem-activities/build-a-robot-hand Days: 2 Mode: Individual Take-home: Cardboard robotic hand
Teaching & key ideas
Key concepts: Tendons, joints, tension, biomimicry, task-specific design.
Hook: Pull a string routed across paper 'joints' and observe curling.
Test / evidence: Pick up assigned object such as cup, block, pom-pom, or marker.
Variables to change: Finger length; straw spacing; string routing; grip surface.
Lesson flow
Lesson plan:
Day 1: build
Day 2: troubleshoot + task test
Video:
Make a Robotic Hand with Straws
https://www.youtube.com/watch?v=KKvIygrPQvE
Safety / cleanup:
Teacher helps with needle/string threading if used; trim sharp cardboard.