Curated OER
GPS Receiver Basics
Young scholars practice using a GPS receiver. They walk in different directions and monitor their progress on maps. They enter specific locations and use information given to them to get them back to their original locations.
Curated OER
Navigation
Students study the basic methods for finding one's position on Earth. Latitude can be deduced from the height above the horizon of the pole star or of the noontime Sun, while longitude requires an accurate clock giving universal time.