Unit 1 AP Human Geography Review: Thinking Geographically Notes
Unit 1 Live Review: Thinking Geographically
Reference Maps vs. Thematic Maps
- Reference Maps - These show boundaries and geographic features of an area. - They do not contain data or tell a specific story; they are more like a "snapshot" of a location. - Examples include topographic maps or maps showing physical features. - Thematic Maps - These are used to display data and "tell a story." - Choropleth Map: Uses different shades of colors to display specific data values. Often used to show patterns across geographic areas. - Dot Density Map: Shows specific locations using dots. The legend is critical here as one dot can represent varying amounts (e.g., 1 dot = 1 person vs. 1 dot = 6,000 people). - Graduated Symbol Map: Uses symbols of different sizes to visually display data (e.g., North American ski resorts or presidential election data). Overlap can be a limitation. - Isoline Map: Displays shared characteristics through contour lines, commonly used for temperature or elevation (topographic). - Cartogram Map: Distorts the size of geographic areas based on the data value being represented (e.g., a population cartogram makes countries with more people appear larger). - Flowline Map: Displays movement of goods, people, or ideas. The thickness of arrows indicates the volume of movement/trade.
Core Concepts of Geography
- Distortion: The fundamental problem with all maps. You cannot represent a 3D sphere perfectly on a flat 2D surface. This impacts: - Shape - Distance - Relative size - Direction - Mercator Projection: A map projection used for naval navigation. It preserves direction but greatly distorts the relative size of landmasses (e.g., Greenland appearing larger than Africa). - Toponym: A literal term for a place's name. - Absolute vs. Relative Concepts - Absolute Distance: Exact measurable space between two places (e.g., miles or kilometers). - Relative Distance: Approximate measurement often based on qualitative factors like time (e.g., "10 minutes away"). - Absolute Direction: Precise direction from one location to another (e.g., using a compass for North, South, East, West). - Relative Direction: Describing location based on landmarks or relative surroundings (e.g., "by the water tower"). - Absolute Location: The exact spot on Earth, often described using longitude and latitude or a specific address. - Relative Location: Describing where something is in relation to something else.
Spatial Patterns and Data Analysis
- Patterns of Settlement - Clustered: Objects/settlements are grouped closely together. - Dispersed/Scattered: Objects/settlements are spread out over an area. - Linear: Objects/settlements follow a line, often along a road, river, or transportation corridor. - Types of Data - Qualitative Data: Information that is witnessed, observed, or described (e.g., opinions, surveys, interviews). It is subjective. - Quantitative Data: Objective data in number form (e.g., census counts, population pyramids, statistics). It is factual and measurable. - Collecting Data Methods - Census: A complete population count including details like income, race, and household size. It provides essential quantitative data for federal/state funding. - Field Observations: Collecting data firsthand at a location. - Landscape Analysis: Observing and interpreting the human and physical characteristics of a place. - Photographic Interpretation: Using images (photos or satellite) to identify land use or cultural characteristics.
Geospatial Technologies
- Remote Sensing: Collecting information about the Earth's surface from a distance without being physically present (e.g., satellite images, drones, or airplanes). - GPS (Global Positioning System): Used for precise navigation and identifying absolute location via satellites. It is increasingly used in precision agriculture (tracking tractors). - GIS (Geographic Information System): Software used to capture, store, manage, and layer data to create complex maps. It allows geographers to see spatial patterns by layering different data sets on top of one another.
Scale and Scale of Analysis
- Map Scale - Small Scale Map: Shows more of the Earth's surface (zoomed out) but provides fewer details and more generalizations. - Large Scale Map: Shows less of the Earth's surface (zoomed in) but provides significantly more detail. - Scale of Analysis: The level at which data is organized or examined (global, national, regional, or local). - A map might show the whole world (Global Scale) but organize the data by country (National Scale of Analysis). - If data is organized by counties within a state, it is a Local Scale of Analysis.
Human-Environment Interaction
- Sustainability: Using resources to meet current needs without compromising the ability of future generations to meet theirs. - Resources: - Renewable: Can be replenished quickly (e.g., trees, crops). - Non-renewable: Cannot be easily replaced (e.g., oil, natural gas). - Land Use Patterns: How society decides to use land (agricultural, residential, commercial, industrial). This reflects a society's values. - Theories of Interaction - Environmental Determinism: The belief that the physical environment dictates the success and culture of a society. Suggests humans have little agency. - Possibilism: The more modern belief that while the environment sets limits, humans have the agency/ability to adapt and modify the environment to suit their needs (e.g., desalinization plants in the UAE).
Space, Place, and Movement
- Distance Decay: The farther you are from a place, the less likely you are to interact with it. Interaction decreases as distance increases. - Time-Space Compression (Convergence): The feeling that the world is "shrinking" because advancements in technology and communication make it easier to interact over long distances, effectively countering distance decay. - Flow: The movement of goods, people, services, or ideas between places. - Space vs. Place: "Place" is made of human and physical characteristics. "Space" is the area between locations. How we arrange patterns in space (like desk arrangements in a classroom) changes how a place is used and perceived.
Regions
- Formal (Uniform) Region: An area with shared characteristics (cultural, political, or physical) and defined, undisputed boundaries (e.g., the United States, a specific state, or a climatic zone). - Functional (Nodal) Region: An area organized around a center point or "node" (e.g., a radio station's broadcast range, a pizza delivery zone, or a subway system). Interaction is strongest at the node and decreases moving outward. - Perceptual (Vernacular) Region: An area that exists based on people's feelings, images, or perceptions rather than concrete facts (e.g., "The South," "The Midwest," or "The Middle East"). Boundaries vary depending on who you ask.
## Questions & Discussion - Question: What is the difference between export and import? - Response: Exports go out (E for exit); imports come in (I for in). - Question: Is this pre-recorded? - Response: No, this is a live stream. - Question: What is the fundamental problem all maps have? - Response: Distortion. - Question: What is the difference between GIS and GPS? - Response: GPS is for navigation and location (absolute location/satellites). GIS is for storing, layering, and analyzing data on maps. - Question: What is cultural relativism and ethnocentrism? - Response: This will be covered in Unit 3, but cultural relativism is viewing a culture through its own shoes, while ethnocentrism is viewing it only through your own perspective. - Question: What is a subnational scale? - Response: This is a scale below the national level, like a state or local level. - Question: Does the census collect political affiliation? - Response: No, that is personal/qualitative; the census collects factual/quantitative data like population, income, and race. - Question: What are the task verbs for the FRQ? - Response: You need to know the difference between "Define," "Describe," and "Explain." "Explain" usually requires showing how or why a process occurs.