gps in education arlington isd, instructional technology department october 21, 2006
TRANSCRIPT
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GPS in Education
Arlington ISD, Instructional Technology Department
October 21, 2006
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Navigation Before GPS
landmarks
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Navigation Before GPS
Land in sight
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Navigation Before GPS
night sky
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Navigation Before GPS
chronometer
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Navigation Before GPS
sextant
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Navigation Before GPS
TRANSIT satellite
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GPS
NAVSTAR Global
Positioning System
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GPS
Manpack
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GPS
Precision Lightweight
GPS Receiver (PLGR)
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GPS
So how does it work?
http://video.howstuffworks.com/hsw/player.htm?v=gps
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Google Earth
• Free download– http://earth.google.com
• Satellite Imagery
• KMZ’s
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Geocaching Background
• Started August 2000
• “Geo” means “earth/geography”
• “Cache” means “container”
• 319,509 caches in 222 countries
• Free (once you have a GPS receiver)
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How it Works
• Geocacher searches by zip code for caches in a certain area
http://www.geocaching.com
• Takes the GPS receiver and locates the cache
• Open cache, sign log book, trade items
• Replace as it was found
• Log find on the website
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Geocaching Rules
• CITO
• Leave no trace
• No food/candy
• Don’t trade “down”
• Don’t give away the hide in the logs
• Adhere to the creed
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Geocaching Lingo
• TFTC
• TNLN
• FTF
• “Muggles”
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Types of Caches
• Micros
• Regular/Small
• Virtual
• Multi-cache
• Where’s George
• Letterboxing
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Trackables
• Travel Bugs– http://www.geocaching.com/track/search.aspx
• Geocoins
• White Jeeps
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Explorist 100
• Power button on right side
• Allow 2 minutes for the satellites to lock on– 3 solid bars
– Will automatically advance to next screen
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Explorist 100 (ctd.)
• Odometer tells how far you’ve traveled
• Location screen
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Explorist 100 (ctd.)
• Reading the coordinates
Current Position Desired Position
32°46.143 N 32°46.197 N
97°04.816 W 97°04.749 W
In which direction do you need to travel?
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Explorist 100 (ctd.)
Has a built-in digital compass.
Compass only works when traveling at least 3 mph.