TeachEngineering
Teach Engineering: Projections and Coordinates: Turning a 3 D Earth Into Flatlands
Projections and coordinates are key advancements in the geographic sciences that allow us to better understand the nature of the Earth and how to describe location. These innovations in describing the Earth are the basis for everything...
Indiana University
Indiana University: Nature of Science Lessons
This list of nature of science lessons from the Indiana University includes three links to lessons under the heading "Realm and Limits."