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Non-Round Rollers

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    The Exploratorium

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Non-Round Rollers

Wheels aren't the only things that can "roll" objects that are placed on top of it. Make non-intuitive shapes from cutouts and a compass to demonstrate this.

Quick Guide

Preparation Time:
10 to 30 minutes

Learning Time:
5 to 10 minutes

Estimated Materials Cost:
1 cent - $1 per student

Age Range:
Ages 6 - 18

Resource Type:


Materials List (per student)

  • Access to a computer printer
  • Glue, tape, or stapler
  • File folders, poster board, or similar stiff material
  • Scissors
  • Metric ruler
  • Drawing compass
  • A piece of foam board, poster board, or Masonite, about 6 × 18 inches (15 × 45 cm)


  • Mathematics
    • Geometry
  • Physical Sciences
    • Motion and Forces
      • Machines
      • Rotation Motion
  • The Nature of Technology
    • The Design Process
      • Research and Development
      • Invention and Innovation


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  • Free access




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  • Thumbnail GEOMETRY by rojedaescarcega on 2016-08-25