# Understanding and Using Maps. 1.Identify the continents or oceans indicated by the letters A – I.

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Understanding and Using Maps

1.Identify the continents or oceans indicated by the letters A – I.

Latitude and Longitude ► The earth is divided into lots of lines called latitude and longitude.

Lines ► Longitude lines run north and south. ► Latitude lines run east and west. ► The lines measure distances in degrees. Latitude Longitude

Where is 0 degree? ► The equator is 0 degree latitude. ► It is an imaginary belt that runs halfway point between the North Pole and the South Pole. Equator

Where is 0 degree? ► The prime meridian is 0 degrees longitude. This imaginary line runs through the United Kingdom, France, Spain, western Africa, and Antarctica. Prime Meridian

Compass ► A compass is a tool that helps the user know what direction one is headed. ► On a map, a compass or a compass rose helps the user locate these directions.

Map Legends ► The legend is the key to unlocking the secrets of a map. Objects or colors in the legend represent something on the map. Religions Legend

Age Expectancy Legend

Can you understand this legend?

World Map Prime Meridian Equator North Pole South Pole N.America S.America Africa Europe Asia Australia Antarctica Pacific Ocean Atlantic Ocean Pacific Ocean Indian Ocean Southern Ocean Arctic Ocean

The previous map was very simple. It only shows generalized places. To locate a specific point on Earth we need a more detailed map.

So, how can we use latitude and longitude values to find locations on a map? Flattening makes it easier!

1.What information is missing from the map above.? 2. According to the map which are the developed countries? 3. According to the map which are the developing countries?

Typical Graph ► This is an example of a typical graph we are all familiar with. ► This graph is made up of different “points” with lines that connect the points.

Typical Graph ► Each point has two values: horizontal “X” axis ► The “X” value that runs along the horizontal “X” axis vertical “Y” axis ► The “Y” value that runs along the vertical “Y” axis Y axis X axis

Typical Graph ► X value is always stated first ► Followed by the Y value ► The “origin” is the point where the 2 axes intersect with a value of (0,0) (0,0) (3,8) Y X (9,5)

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 (0,0) 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 (runs through Greenwich outside of London). ► Lat/Long values 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) N S EW

► 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 Equator

East West, North South on the Earth ► What would be the latitude and longitude directions in Australia? ► What would be the latitude and longitude directions in S.America? Prime Meridian ? Equator ?

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 in terms of degrees. Y X 90°S 90°N 0°0°

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. Y X 180°W 180°E 90°E90°W 0°0°

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.

‘DoNow’ See If You Can Tell In Which Quarter These Long/Lats points Are Located ► 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

Where can you find Madagascar?:, 69° W18° NWhere can you find Santo Domingo?: 20° S, 47° E SD M ± ±

0° 90° 30° 60° 180° 90° 180° 90° 45° 135°

‘DoNow’ 1. ¿Qué línea se encuentra en 0° latitude? 2. ¿Qué línea se encuentra en 0° longitude? 3. ¿Como se llego a determinar el local para la línea en la pregunta #2?

‘DoNow’ ► What kind of line is the equator? ► Why you need a legend on a map? ► What are the cardinal directions? ► According to Question # 3 are these the only directions that you can travel?

Sites to visit ► Look up Latitude and Longitude for US Cities Latitude and Longitude for US CitiesLatitude and Longitude for US Cities ► Maps and Map Skills Degrees, Latitude, & Longitude Worksheet Maps and Map Skills Degrees, Latitude, & Longitude Worksheet Maps and Map Skills Degrees, Latitude, & Longitude Worksheet ► Latitude and Longitude Map (lesson plan) Latitude and Longitude Maplesson plan Latitude and Longitude Maplesson plan ► Scale Scale ► Time Zones Time Zones Time Zones ► Anchors Aweigh (a map adventure) Anchors Aweigh Anchors Aweigh ► Map Quiz Map Quiz Map Quiz ► Make Your Own Map Make Your Own Map Make Your Own Map ► Topography Maps Topography Maps Topography Maps ► U. S. Map Collection U. S. Map Collection U. S. Map Collection ► GeoSpy Game GeoSpy ► Globe Projector Globe Projector Globe Projector ► GeoGame GeoGame

Additional Sources ► Atlas - World (Holt, Rinehart and Winston) Atlas - World (Holt, Rinehart and Winston) Atlas - World (Holt, Rinehart and Winston) ► Outline Map of US Outline Map of US Outline Map of US ► Map Packet Download Map Packet Download Map Packet Download ► Maps.com Maps.com ► National Geographic Xpeditions National Geographic Xpeditions National Geographic Xpeditions ► Maps & Globes Maps & Globes Maps & Globes

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