Typical Graph  A point can also have negative (-) values  Negative X values are to the left of the origin (0,0)  Negative Y values are below the origin X Y (-X,+Y) (+X,-Y) (+X,+Y) (-X,-Y) (0,0)

East West, North South on The Earth  Let the X axis be the Equator.  Let the Y axis be the Prime Meridian that runs through Greenwich outside of London.  Lat/Long are the 2 grid points by which you can locate any point on earth. Y X

East West, North South on the Earth  Let each of the four quarters then be designated by North or South and East or West. N S EW

East West, North South on the Earth  The N tells us we’re north of the Equator. The S tells us we’re south of the Equator.  The E tells us that we’re east of the Prime Meridian. The W tells us that we’re west of the Prime Meridian. (N, W) (N, E) (S, W) (S, E)

East West, North South on the Earth  That means all points in North America will have a North latitude and a West longitude because it is North of the Equator and West of the Prime Meridian. (N, W) Prime Meridian

East West, North South on the Earth  What would be the latitude and longitude directions in Australia? Prime Meridian ? If you said South and East, you’re right!

What is Latitude?  Latitude is the distance from the equator along the Y axis.  All points along the equator have a value of 0 degrees latitude.  North pole = 90°N  South pole = 90°S  Values are expressed degrees north or south Y X 90°S 90°N

What is Latitude?  For Example:  24°N  This is close to our latitude in Abu Dhabi! Y X 90°S 90°N

What is Longitude?  Longitude is the distance from the prime meridian along the X axis.  All points along the prime meridian have a value of 0 degrees longitude.  The earth is divided into two parts, or hemispheres, of east and west longitude. Y X 180°W 180°E

What is Longitude?  The earth is divided into 360 equal slices (meridians)  180 west and 180 east of the prime meridian Y X 180°W 180°E

What is Longitude?  Our longitude here in Abu Dhabi is:  54°E Y X 90°S 90°N

What is Latitude & Longitude?  In Abu Dhabi, our coordinates are:  24°N  54°E 90°N 90°S 180°W 180°E

So Where is (0,0)?  The origin point (0,0) is where the equator intersects the prime meridian.  (0,0) is off the western coast of Africa in the Atlantic Ocean.

See If You Can find the EXACT LOCATION of these coordinates:  1. 41°N, 21°E  2. 37°N, 76°W  3. 72°S, 141°W  4. 7°S, 23°W  5. 15°N, 29°E  6. 34°S, 151°E AB C D

Find the coordinates of the following locations:  1) Madrid, Spain  2) Tokyo, Japan  3) New York, USA  4) Mexico City, Mexico  5) Beijing, China  6) Calgary, Alberta  7) Moscow, Russia  8) Dubai, UAE  Make up a list of your own cities 5 for a friend to locate  Switch books! And search for the cities coordinates.  Check if your partner is correct!

 1. B  2. A  3. C  4. C  5. B  6. D

 See if you can find those same latitude/longitude locations on a map!

Equator Latitude 0 o Latitude: (90 o N to 90 o S) Latitude 23½ o NorthTropic of Cancer Latitude 23½ o South Tropic of Capricorn Longitude 30 o East Longitude 60 o East Longitude 30 o West Longitude 60 o West Positioning on the Earth’s Surface East is the direction of rotation of the Earth North Pole South Pole 23½ o 66½ o 90 o st June 22 nd December 22 nd Sept 20 th March 30 o E 60 o E90 o E 90 o W 30 o W 60 o W Longitude 90 o East Longitude 90 o West Prime Meridian 0 o Longitude Longitude: (180 o E to 180 o W) Latitude and Longitude together enable the fixing of position on the Earth’s surface.

Now you’re ready to find some locations on a map!