GPS Hide and Seek
On Monday I introduced the concepts of latitude and longitude. This was review for some students and apparently whole cloth new material to others. Wednesday the hide and seek launched as a self-serve operation with the GPS units left unattended on a desk in the faculty office. Along with the GPS units was a sheet with the search and rescue coordinates.
Coordinates were provided in both degrees and decimal minutes and in decimal degrees.
I wrapped up the exercise with question on which way was north, south, east, and west. Which way was zero latitude and what is zero latitude called? Which way is zero longitude and what is zero longitude called? Who lives at zero longitude due west of Pohnpei? I also asked how far are these arcminutes, or fractions of an arcminute, in meters? What is the relationship? I mentioned some applications of GPS technologies. The class ended with the blessing of a sudden wind driven rain shower.
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