Special-needs teachers always have to be creative and often must invent props to get their points across. 3D printing can have a particular role to play for learners who benefit from tactile interactions.
However, as we have seen in Chapter 6 and elsewhere, creating effective models can be challenging. Models from free databases can be hard to print, or may represent the concept they claim to show incorrectly or incompletely. Models for math and science, in particular, often need some background ...