What is the Prime Meridian?
4th Grade · Social Studies · 15 min· General Standard 3
Lesson Preview
Learning Objective
I can explain what the prime meridian is and where it is located.
- 1
Ptolemy was a famous geographer who created imaginary lines called map coordinates to help us find our way.
- 2
Latitude lines run north and south of the equator, while longitude lines run east and west of the prime meridian.
- 3
To find a location on a map using coordinates, remember 'flat first, long last,' meaning find the latitude line before the longitude line.
