The student is shown an animation involving a 2-dimension view of the globe, where dark and light areas represent daylight and night respectively, and is asked to determine whether or not the motions showing the changes between daylight and night on various parts of the globe is realistic or not based on the Earth's tilted rotation.
keywords: daylight, night, rotation, tilt
swf file: ca_coordsmotion_daylightbadgood.swf