National Park Service
Fire Ecology on the Rim
An engaging unit on wildfires includes three sections, including a background section with eight lessons and five activities, a field experience section with 13 lessons and five activities, and a conclusion section featuring an analysis...
Curated OER
Your Expedition of Discovery
Young scholars study GPS and see how it is used to determine points on the Earths surface. In this expedition lesson students use GPS to find given coordinates.