How Do 3D Printers Work?

If we stack up all the cross sections of a figure, does it create the figure? Pupils make the connection between the complete set of cross sections and the solid. They then view videos in order to see how 3D printers use Cavalerie's Principle to build objects. 

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Have groups build a cone using Styrofoam sheets of different thicknesses
  • If you have access to a 3D printer, have the class watch it print
Classroom Considerations
  • Some classmates may struggle with determining the amount of material needed for the 3D printings in the exercises
  • The lesson is thirteenth in a 14-part series
  • The lesson resource contains answers for the exercises
  • Auxiliary materials also come as editable files
  • The video for the 3D printing of a coffee cup is not available in the US