Latitude & Longitude
Free Games & Activities
The idea of using vertical and horizontal lines on a map to identify your position was first used by Ptolemy about 1900 years ago. His first Map did not include the entire world only the parts he knew. His ideas of longitude and latitude are still used today.
The prime Meridian is the meridian in a geographic coordinate system which longitude is defined to be zero. It is the starting point for measuring distance both East and West around the earth.
Finding directions Using a compass activity in game Entire lesson plan!