Materials List: Lending a Hand:
Teaching Forces through Assistive Device Design

For the teacher's introductory presentation:

Each group needs:

For the entire class to share:

  • ~100 feet clear vinyl tubing (preferably ½" outer diameter, 3/8" inner diameter)
  • 1 box regular-sized craft sticks
  • 1 box jumbo-sized craft sticks
  • 1 roll duct tape
  • 1 roll masking tape
  • 10-lb. bag play sand
  • ~1,000 feet polyester string
  • 4-10 electronic scales or triple beam balances
  • 4-10 force meters or spring scales
  • 4-10 100-ml graduated cylinders
  • 4-5 6-8 oz. clear plastic cups
  • (optional) 4-5 tube cutters
  • (optional) dynamometer
  • computer and projector, to show the class the PowerPoint® presentation
https://www.teachengineering.org/activities/view/wpi_lending_hand_activity1