Introduction
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Transcript of Introduction
About Maps
AP Human Geography
Mental or Perceptual Maps
Mental (Perceptual) MapsWhere do you think the student lives who created this cognitive map?
Perceptual Region
What do you consider “The Southwest” of the US?
Perceptual Region
Map Projection
Map projection: the way we fit Earth’s three-dimensional surface onto flat
paper or a screen.
Mercator Projection
Robinson Projection
Goode’s Homolosine Projection
All maps are selective.
What features are included on the map? How are they depicted?
Where are they depicted?
Color preferences and meaningColor• Logical use of color To show an increase in intensity
• Vary with culture, life cycle and demographics– RED = warning, heat, anger, courage, power,
love, military force, Communism
– PINK = feminine– BLUE = masculine, water– GREEN = calm, lush vegetation– YELLOW = wealth, desert
Orientation
Maps That Advertise
Maps & National Security
Maps for Propaganda
Map Scale
Scale of Inquiry
Scale of Inquiry
Scale of Inquiry
Map Scales(relationship between distance on map and distance on Earth’s surface)
A large-scale map depicts a small area with great detail. A small-scale map depicts a larger area with little detail.
Verbal Scale: 1 inch equals 1 mile •Simple to understand•Problem: tied to a specific map (cannot compare maps of different scales
Representative Fraction:
1:63,360 Can be used for any linear unit of measure, including inches, feet, miles, meters etc.
Graphic (or Bar)Scale:
Usually subdivided to allow easy calculation of distance on the map
Distance on Map
Distance on Ground
1 1 1
250,000 100,000 24,000
Largest Scale
Important Point
Any single map is but one of a an infinitely large number of maps that might be produced for the same situation from the same data.
Types of Maps
Thematic MapsA thematic maps depicts a single feature, for example, climate, population, landform, or land use.
Types of thematic maps:
Isoline connects points of equal value
Choropleth puts features into classes and then maps classes for each region
Proportional symbol
size of the symbol corresponds to the magnitude of the mapped feature
Dot each dot represents some frequency
Map types
What kind of map is this?
Isoline – connects points of equal value
CartogramA cartogram is a map that assigns to a named earth region an
area based on some value other than land surface area.
Vocabulary• Cognitive Map• Perceptual Region• Mercetor Projection• Robinson Projection• Goode’s Homolosine• Orientation• Scale of Inquiry• Isoline Map• Choropleth Map• Proportional Symbol Map• Dot Map