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...
PBS
Pbs: Mathline: Let's Face It [Pdf]
Check out this math project about polyhedra! Learners will enjoy the hands-on activity while they learn about tetrahedrons, hexahedrons, octahedrons, dodecahedrons, and icosahedrons. [Requires Adobe Reader.]