Category: Math
How Does GPS Work???
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This is a great little primer from PBS about how a GPSr actually figures out it's location - it even describes the math in detail!
http://www.pbs.org/wgbh/nova/longitude/gps.html
Enjoy. more »
What If...
While out geocaching, I ran across a cache that incorporates many educational ideas. The name is "What If..." and asks the question, what if the Sun were the size of a community water tank? The placer has scaled the Solar System based on the size of the… more »
Perimeter, Area, & Volume
Calculate the perimeter or area of your school or other large area - you could even use the area calculation to estimate the volume of water that hits that area during a 1" rainstorm! more »
What's The Slope?
Calculate the slope of a hill, using the trip information page on your GPSr. It will show you how far you have walked, and you can note the change in elevation. After that, let the power of the Pythagorean Theorem guide you! more »
Sudoku Puzzles
Use a Sudoku puzzle to give cache coordinates - replace the first needed digit in the puzzle with an A, second number with a B, and so on until the full coordinates are given. (Info on the mathematics of Sudoku) more »
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