LEARNING GOAL: I will be able to use latitude and longitude to identify places on a world map.
Talk with the person sitting next to you. Can you identify the correct location for the given points on this Coordinate Plane? POINT A: (2, 7) POINT B: (-4, 6) POINT D: (-3, -3) POINT E: (0, 2) POINT F: (7, -5) Each point has a specific location on this grid, identified by using the X Axis and the Y Axis. WHY ARE WE EVEN DOING THIS??? THIS IS HISTORY CLASS!!!!
The same idea as locating a point on a Coordinate Plane is used with locating specific location on a world map. Most maps contain specific lines that form a grid. This grid can be used to accurately identify any place on Earth.
Lines of latitude and lines longitude cross one another. They form an imaginary grid system around the earth. http://www.navfltsm.addr.com/globe.jpg
Lines of latitude are also called parallels. They circle the earth parallel to the Equator. They measure north and south of equator in degrees. The Equator is at 0 latitude. The North Pole is at 90 N (north). Maps101.com ESTIMATE: What line of latitude do you think runs through this point on the map?
Lines of longitude are also called meridians. They circle the earth from Pole to Pole. They measure east and west of the starting line, at 0 longitude or the Prime Meridian. Talk to the person sitting next to you. Why are the very western and very eastern longitude lines say 90 degrees? Maps101.com
Only one place can be found at the point where lines cross one another. Use degrees ( ) to give an exact spot where one line of latitude crosses one line of longitude an absolute location. http://www.navfltsm.addr.com/globe.jpg You use ordered pairs of numbers (Latitude, Longitude) to identify the absolute location.
What continent would be located at the following point? (20 o s, 60 0 w) Step 1: Put a finger on the line of Latitude that is (20 o s) Step 2: Put a finger on the line of Longitude that is (60 0 w) Step 3: Follow both lines until they meet. Step 4: Identify the continent. SOUTH AMERICA When writing the coordinates, write using the same order. (Latitude, Longitude) What would be the latitude and longitude coordinates for the following location? (20 o n, 100 o w)
The equator circles the middle of the Earth. It divides the earth into hemispheres or half-spheres. North of the equator is the Northern Hemisphere. South of the equator is the Southern Hemisphere.
Maps101.com
The Prime Meridian runs from north to south. It divides the earth into half spheres in the other direction. East of the Prime Meridian for 180 degrees is the Eastern Hemisphere. West of the Prime Meridian for 180 degrees is the Western Hemisphere.
Maps101.com
LET S PRACTICE!! Place a dot on the following coordinate: (60 0 n, 140 0 w) What continent? NORTH AMERICA What hemisphere? (Give two answers) NORTH AND WEST Notice anything with those last answers? The latitude and longitude coordinates tell you which hemisphere s a place is located.
What would the latitude and longitude coordinate be for the center of the point below? NOT EVERY (LATITUDE, LONGITUDE) COORDINATE WILL BE WHERE TWO LINES INTERSECT. (10 0 s, 10 0 w) What hemisphere is this located in? South and West
MORE PRACTICE: Discuss the following with your partner. True or False The latitude and longitude coordinate (30 0 s, 160 o e) runs through Australia. FALSE.BUT IT S REALLY, REALLY CLOSE True or False The coordinates for the black dot is at (0 0, 40 o e). TRUE Why is there not a N or S next to the zero degrees? This point is on the equator. It is neither north or south.
PRACTICE WITH YOUR PARTNER. You will each be using the large placemat maps for this. PART 1: For each U.S city listed below, write the approximate (Latitude, Longitude) coordinates. Try to be within 4-5 degrees for each) PART 1 ANSWERS PART 2: Find the closest world city for each coordinate. PART 2 ANSWERS PHILADELPHIA, PA (40 0 N,75 0 W) (19 0 N, 99 0 W) Mexico City, Mexico RENO, NV (39 0 N, 119 0 W) (42 0 N, 88 0 W) Chicago, USA HOUSTON, TX MIAMI, FL PHOENIX, AZ (29 0 N, 95 0 W) (25 0 N, 80 0 W) (33 0 N, 112 0 W) (23 0 S, 43 0 W) (34 0 S, 18 0 E) Rio De Janeiro, Brazil Cape Town, South Africa (39 0 N, 116 0 E) BEIJING, China