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North Is Not Up!

North Is Not Up!. Lynne H. Hehr Center for Mathematics and Science Education Arkansas NASA Educator Resource Center University of Arkansas lhehr@uark.edu. How this talk got started…. Misconceptions. In our speech…. “I’m going up to Anchorage…down to Pensacola.”.

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North Is Not Up!

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  1. North Is Not Up! Lynne H. Hehr Center for Mathematics and Science Education Arkansas NASA Educator Resource Center University of Arkansas lhehr@uark.edu

  2. How this talk got started… Misconceptions

  3. In our speech… “I’m going up to Anchorage…down to Pensacola.” Altitude is not the same thing as Direction!

  4. In our learning… “Rivers can’t flow north, east or west”… …why?… “because all rivers flow south”… …why?… Which way does water flow? “because south is down.”

  5. In our teaching… Lesson plan directions: Students, today we will be looking at maps. Position your map so that north is up and south is down. ? Don’t we really mean…north is at the top of the page and south is at the bottom of the page? If so, then why don’t we say that?

  6. Why even have directions?

  7. Tools for travel and location… Compass GPS

  8. World Divisions...we all know these • Latitude • Longitude

  9. Geographic North…ok, this is easy, too Static Measurable by latitude and longitude A definite point on a map

  10. Magnetic North…huh? Dynamic Changes from time to time Earth’s rotation/revolution, core convection Declination – must make corrections for • Changes from location to location • Closer to magnetic north, angle is smaller • Further away, angle increases • Described as either easterly or westerly • Found on maps

  11. Easterly and Westerly declination

  12. Compass Demonstration Using: Needle magnetized by magnet Cork with needle Water and container for floating magnetized needle Gyroscompass is a free floating compass used by ships and airplanes – allows for the movement.

  13. Get the Point? N NW NE E W SW SE S

  14. What do the points mean in degrees? 0 or 360 315 45 90 270 225 135 180

  15. Activity 1 –Globe Toss In groups of 6, toss ball and catch Material each group needs: inflated plastic globe In what hemisphere (N or S) is your right thumb? After everyone has had a turn, In what hemisphere (E or W) is your right thumb? After everyone has had a turn, In what hemispheres (N & E, N & W, S & E or S & W) is your right thumb?

  16. How to read a compass… • Overhead compass • Individual compasses

  17. Activity 2 – Plod and Plot In groups of 6, use compass bearing and distance to outline 1 of 5 “floor” shapes scale the shape to a paper drawing 6 meter space from which to plod and plot Materials each group needs: • Rolled up meter tape • Directional compass • Coordinate sheet with bearings/distance • Crepe paper rolls • Masking tape • Transparent compass/360 protractor • Scale drawing sheet

  18. Correlation to Science, Math and Social Studies… • Angles measured in degrees (protractor) • Make a line (actually a ray) • Heading with direction and line (ray) • Compass bearer – vertex of two rays

  19. Group Roles • 1 member – directional compass bearer standing at Target Zero hold compass at center of 6 meter line, give bearings and distance • 2 members – measurers use paper meter tape to locate distance • 1 member – point/flag bearer and recorder mark the spot by planting labeled flag on points • 3 members – shapers use crepe paper and masking tape make the shape of what’s being formed

  20. Making mini dot-to-dot pictures Using protractor and readings Mark bearing first, then use ruler for distance Lightly draw lines to point – mark point Connect the dots for the mini picture

  21. Activity 3 – Treasure Hunt After reading,Peter Pan Using treasure map marked with symbols created ahead of time, pairs of students use directions to locate keys hidden on campus. Once all keys are found, treasure chest is opened by one that works. All share in candy treasure.

  22. Activity 4 – Treasure photos Given directions and bearings to find spots around campus – • Use digital camera to take picture • Use GPS unit to take latitude/longitude

  23. Activity 5 – Treasure Hunt Using magnetic compass and meter tape, students will locate an assigned landmark. 1 member – choose beginning point - remain in original spot check final position relative to landmark 7 members – follow one clue, in order of direction sheet AIMS Teacher guides: Through the Eyes of the Explorers Finding Your Bearings

  24. Materials to take Inflatable globe with web/contact information attached. Use website to download all lessons. North Is Not Up! Lynne Hehr lhehr@uark.edu www.uark.edu/~k12info/

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