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Activity: Trace of Shadow
Go to: http://www.ies-math.com/math/java/conics/hidokei/hidokei.html (opens a new window)
Description: When the sun moves around in the sky, the shadow cast by a vertical stick moves on the ground. The tip of the shadow traces some kind of curve. The curve depends on the observation point, and it also depends on seasons.
Technology Type: Java Applet 
Author: International Education Software: Manipula Math
Language: English 
Cost: Does not require payment for use

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Tool: Laboratory
Courses: Algebra II Conic sections
PreCalculus Conic Sections