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Location Identification

Location Identification. Navigation Unit. Guiding Question. Can you identify your location using: Triangulation? GPS? Aerial Photography?. Main Ideas.

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Location Identification

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  1. Location Identification Navigation Unit

  2. Guiding Question Can you identify your location using: • Triangulation? • GPS? • Aerial Photography?

  3. Main Ideas Students will identify and verify their location on a map by triangulating with a compass, ruler, and quadrangle, by using a GPS, and by using aerial photography found on Google Earth or Erdas Viewfinder.

  4. Teaching Level Grades 7 through college

  5. Objective and Standards • Students will interpret maps to answer questions dealing with places or environments. (Social Studies 5.1) • Students will demonstrate their problem solving skills and justify their results using real numbers. (Mathematics 1.3) • Students will apply estimation and measurement using appropriate methods and units to solve problems. (Mathematics 3.1)

  6. Objectives and Standards • Students will demonstrate ability to convert from metric to U.S. systems. (Mathematics 3.2) • Students will use maps and tools to acquire, process, and report information from spatial perspective. (Geography 1)

  7. Objectives and Standards for CWC • Apply arithmetic, algebraic, geometric, higher-order thinking, or statistical methods to modeling and solving real-world situations. • Use appropriate technology to enhance mathematical thinking and understanding and solve mathematical problems and judge the reasonableness of the results. • Develop the view that mathematics is an evolving discipline, interrelated with human culture, and understand its connections to other disciplines.

  8. Lesson Time • 160 minutes minimum

  9. Materials Required • Compass • 7.5 quadrangle • UTM measuring tool • Green pen • GPS units • Computers/internet

  10. Instructions Triangulation: 1. Students work in pairs. Each pair is given a local quadrangle, a compass, ruler, and a green pen. Although triangulation will have been discussed in the classroom, they will also be given the “Brunton” directions seen below.

  11. Triangulation

  12. Instructions Calculating Distance 2. Students will select one of the reference points used to triangulate and their location point determined in #1 and calculate the linear distance in meters.

  13. Instructions Conversions 3. Students will convert their metric length to feet.

  14. Instructions GPS Use 4. Students will find their location using a GPS.

  15. Instructions Aerial Photography 5. Students will find their location using an aerial photography software system (Google Earth, MapTech, Erdas Viewfinder, etc.)

  16. Evaluation Criteria • On-line Quiz • Identify the latitude-longitude and UTM coordinates of two points designated on a quadrangle using a UTM measuring tool. • Calculate the distance between the two points in meters. • Convert the metric length between the two points to feet. • Locate the position on a computer using aerial photography.

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