In this site, you will find four lesson plans that have incorporated 3D printing. The lessons were from Geometry, Ecology, Earth Science and Chemistry.
In Geometry, inverted cones were printed. A wind turbine was printed for Ecology, the solar system was printed for Earth Science and tyrosine was printed for Chemistry. Tinkercad software was used to create three of the designs (the inverted cones, the wind turbine and the solar system) apart from tyrosine. The stl files for the amino acid was from the public domain. The stl file used to print the Sierpinski triangle on this welcome page was also from the public domain.