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Chapter 2 Sections 2-3 Pages 33-40

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1 Chapter 2 Sections 2-3 Pages 33-40
Essential Question: How were the regions of Texas identified?

2 Objectives Compare and contrast the different methods of showing scale. Analyze map characteristics to determine the type of map projections. Interpret information from different types of map projections. Compare/contrast general-purpose and special-purpose maps. Categorize maps as being either general-purpose or special-purpose. Infer information about maps.

3 Making the Earth Fit on a Page
Maps are models of actual areas Maps are drawn to scale Scale: relationship between a distance on a map and the actual distance it represents Example: 1 inch = 100 miles Ways to show scale Bar graph, written scale, fractional scale (see page 34)

4 Cartographers Cartographer: a person who makes maps
Read Then and Now on page 35 Geradus Mercator (page 33) How do cartographers fit a round surface onto a flat map? By using map projections to eliminate distortions See picture on page 35 Projection: the transfer of an image of a curved surface onto a flat surface Plane (used for polar areas) Cylinder (below the equator areas) Cone (between polar and low-latitude areas) Texas is best displayed using a cone projection


6 Cartography Video

7 Common Map Features Map title Scale Location Symbols Legend (Key)
Legend: an explanation of a map’s symbols and scale

8 Types of Maps General-Purpose Maps
Physical Maps: map that shows the natural features of an area They show the topography: features of the earth’s surface and relationship to each other in terms of location and elevation Example: mountains, valleys, rivers, lakes Also called elevation maps Use different colors to represent differences Political Maps: map that shows boundaries in an area Shows boundaries between counties, states, countries, etc Also identify towns, cities, national parks, state capitals, etc Physical-Political Maps: shows both topography and boundaries Most classroom maps

9 Special-Purpose Maps Show info about a specific topic
Example: military maps, historical maps, city street maps, natural resource maps, etc

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