The student is shown an animation of the sun moving through the seasons on a flat map of Earth and is asked to determine the frequency with which the sun will appear at the zenith for various latitudes (the tropics of Cancer and Capricorn, the Artic and Antarctic Circles, and values in between).
keywords: sun, zenith, frequency, latitude, Tropic of Cancer, Tropic of Capricorn, Artic Circle, Antarctic Circle
swf file: ca_coordsmotion_sunatzenithfreq.swf