Key Question: Why do Geographers use Maps, and What do Maps Tell Us?
Map Appendix A Notes • Maps and their functions • Map Scale • Map Projections • The Grid system • Symbols on Maps
What are Maps and what are their functions • What can maps be used for? • In what ways do maps distort?...Why? • How do maps show bias?
Reference Maps Show locations of places and geographic features Absolute locations What are reference maps used for? Thematic Maps Tell a story about the degree of an attribute, the pattern of its distribution, or its movement. Relative locations What are thematic maps used for? Two Types of Maps:
Thematic Map What story about the population of Korea in 1973 is this map telling?
Maps and their functions • Cartography = The art of map making • Reference Map = that used for navigating… ie. Road Map • Thematic Map: One used to illustrate a particular them • Mental Maps: Those that exist in one’s mind (Cognitive maps) • Topographic Maps… use lines to show contour.
Map Scale • Is the ratio between actual distance on the ground and the length given on the map • Which scale would show a smaller portion of the earth, 1/1,000,000… or 1/1,000,000? • Larger scale = more zoomed in • Why are different scales needed in mapping the world?
The Grid System • What function does the Grid System Serve? • What are the key aspects of the Grid system?
Grid stuff to know… • Parallel • Latitude • Equator (0º N. or S.) • Tropic of Cancer (N) • Tropic of Capricorn (S)… 23.5º • Arctic Circle • 0º - 90º N or S • Meridian • Longitude • Prime Meridian 0º E or W • International date line 180º E or W
Map Projections • Why are there different map projections? • Which ones do I need to know? • Azimuthal • Peters • Fuller / Dymaxion • Robinson • Mercator • What are the strengths and weaknesses? • For what are they most commonly used?
Map Symbols • Dots • Tones/shades/colors • Isolines • Symbols
Mental Maps: maps we carry in our minds of places we have been and places we have heard of. can see: terra incognita, landmarks, paths, and accessibility Activity Spaces: the places we travel to routinely in our rounds of daily activity. How are activity spaces and mental maps related?
Aspects of a Mental Map • Nodes • Edges • Paths • Districts • Landmarks
Discussion Questions • List as many type of maps and purposes for maps as you can.