Finding the Spatial In Order To Teach It
Primitives of Spatial Knowledge
From the abstract: "A minimal set of primitives for building sets of spatial concepts is presented. These are needed for understanding the many GIS being circulated today. Using primitives of identity, location, magnitude and time, simple and more complex spatial concepts can be derived" (p 29).
Note: this figure is an interpretation of the author(s)' ideas by K. Grossner