Learn how to read a topographical map and understand what the contour lines mean. Explore longitude and latitude. Find a cliff, a valley, a mountain peak, and more. This is just one of the ten lessons in this unit on oreinteering....

Militaries throughout history have used topography information to plan strategies, yet many pupils today don't understand it. Scholars use Legos and a contour gauge to understand how to construct and visualize topographic profiles. This...