Mark 4 corners and find distance between corners. Calculate area of land and given a price for the land based on the price. Hide an object marking its location. Return to the partner inside the building. Find the object hidden.
Student inside takes the GPS and using it locates the hidden object.
Coordinates, information necessary to find the toy. Identify websites giving GPS information. Collect and record information. Access websited that have information useful. Record information with references of websites.