Students explore the National Spatial Reference System. In this vertical position lesson, students will discuss the use of vertical position data and solve practical problems involving geographic positioning.

Students use bearing measurements to triangulate and determine objects' locations. Working in teams of two or three, students must put on their investigative hats as they take bearing measurements to specified landmarks in their...

Students explain that globes are the best way to show positions of places, but flat maps are portable and can show great detail. They make a mercator projection of the route Lewis and Clark took on their journey.