Linkages are an introduction to mechanical motion and are a fun way to connect to STEM learning.

The project is versatile as it can be created from different accessible materials, from cardboard and popsicle sticks to wood and LEGOs. The complexity also varies, from simple back-and-forth linear motions to complete cams with rotary motion. Introducing linkages leads to experimentation in types and combinations of mechanics used, and what the final product is (A moving hand? A flapping butterfly? A bicycle?)

Linkages are connected to physics, geometry and to concepts of transmission of motion mechanics. A good first step would be to introduce students to different kinds of motion transmission and have them replicate them.