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Published byTheodora Summers Modified over 8 years ago
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Catch Up Unit 1: Physical Geography Mr. Monaco
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What is Geography? 2 Main Branches –Human Geography –Physical Geography “The Spatial Perspective” –25 Maps that will change how you see the world https://www.youtube.com/watch?v=SXB1Z_CxBK0 https://www.youtube.com/watch?v=SXB1Z_CxBK0 Why is Geography Important? –Environmental Determinism –Possibilism –Ethnocentrism
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Basic Knowledge: Maps Maps = Geographers tools Basic Terms –Axis – Earth moves 1000 mph –Rotation = 23 hours, 56 min., 4.09 sec. WHY???? Several Theories… what are theories? theories –Revolution = 365.25 days –Leap Year makes up for the inaccuracies in our day/year –Hemisphere Hemi Sphere How many? What are continents? https://www.youtube.com/watch?v=3uBcq1x7P34 https://www.youtube.com/watch?v=3uBcq1x7P34
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Maps cont. Longitudinal Lines/Meridians –Most important line? –Which hemispheres does it create? –How many total degrees? How many minutes? –Where and what is the 180 th meridian? Latitudinal Lines/Parallels –Most important line? –Which hemispheres? –How many degrees? How many minutes? –23 1 / 2 degrees N? 23 1 / 2 degrees S? –66 2 / 3 degrees N? 66 2 / 3 degrees S? –High latitude vs. Low Latitude? (Middle Latitude)
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Basic Knowledge: Seasons Activity The earth always points to the same spot in the sky
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Maps cont. Map components –Title – what purpose? –Compass Rose: Cardinal and intermediate (depends on the projection) N, S, E, W NE, SE, SW, NW NNE, ENE, … –Legend/Key –Scale – Fraction vs. Graphic scales The ratio of map units to real units Global, national, regional, local Large scale vs. Small scale?Large scale Small scale www.ifitweremyhome.com www.howbigreally.comwww.ifitweremyhome.comwww.howbigreally.com How big would your house look on the map????
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Format of Many pre-1914 German School Atlases
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Comparative Size of Germany and USA in 1914
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This map shows the total number of African-Americans per state. Examine Georgia.
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In the previous slide, Georgia had one of the highest number of African-Americans, but a closer look tells a different picture. The dark red is the Atlanta metropolitan area.
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Using Census Tracts of the Atlanta Metropolitan Area, a different scale gives different results.
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All maps have Distortion All are distorted – most accurate in center 1. Map Projections Mercator projection Robinson projection Azimuthal or polar projectionAzimuthal Equal Area projection https://www.youtube.com/watch?v=vVX-PrBRtTYEqual Area projection https://www.youtube.com/watch?v=vVX-PrBRtTY 2. Shortest distance between two points? Great-circle route
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Mercator Good with direction Bad with sizes and shapes
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Robinson Projection Compromise b/t size and shape More accurate overall representation Golden map for most geographers
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Azimuthal/Polar Projection Shows true direction and shapeShows true direction and shape Distorts sizeDistorts size
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Equal Area Projection Excellent with size/shapeExcellent with size/shape Bad w/ direction & distanceBad w/ direction & distance Ugly! Splits in map = “interruptions”Ugly! Splits in map = “interruptions”
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Great Circle Route
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These mushroom spores are too small to see, so we put them under a MICROSCOPE. When we can see them, we can study them.
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This planet is too big to see, so we put it under a MACROSCOPE. When we can see it, we can study it.
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“Some things are very tiny, and we must use complex electric and optical means (e.g., a microscope) to enlarge them so as to understand their configuration and structural relationships. In contrast, geographical things are so extensive that we must somehow reduce them to bring them into view.” - Arthur Robinson, cartographer
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Electoral Maps Aggregation aggregation can obscure regional disparities within certain territories and doesn’t usually include population density among other measures. Who won the 2000 & 2008 election according to the map? How close was the election?
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CONSIDER THE MAP http://www-personal.umich.edu/~mejn/election/2008/ The 2008 electoral vote.
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CONSIDER THE MAP The 2008 electoral vote by county.
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Types of Maps (Small and Large Scale)(Small and Large Scale) ReferenceReference PhysicalPhysical PoliticalPolitical ChoroplethChoropleth TopographicTopographic Dot (density)Dot (density) CartogramsCartograms http://apcentral.collegeboard.com/apc/public/repository/ap09_frq_human_geogra phy.pdf http://apcentral.collegeboard.com/apc/public/repository/ap09_frq_human_geogra phy.pdf
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Small Scale Map Covers a LARGE area because 1 bar = 1000 miles!!
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Large Scale Map Covers a SMALL area because 1 bar is 1000 feet
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Title Compass Rose Legend or Key Scale
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Physical Map
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Political Map
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Choropleth Map
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Topographic Map
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Dot Density Map
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Cartogram
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US Population Cartogram
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What is represented by this Cartogram?
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Theories What is a theory? –A story that TRIES to explain the facts Versions of theories –Medicine – diagnosis –Science - hypothesis –Lawyers – argument/motive –Geography – MODELS Why do theories change? –New evidence contradicts –A theory more concisely explains the information
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