=======Doing the Moon Dance=======
We gave each student a small ball on a stick (golf ball or ping pong ball) to represent the moon. We turned out the classroom lights and used a lamp to represent the sun. First, everyone held their ball so that it was eclipsing the lamp. I asked, "What is the angle between your arm when pointing one arm at the lamp and holding the ball in the new 'moon' position?" 0 degrees.\\
As we moved through the moon phases, the students observed the angle relationship created by the "sun" and "moon":\\
  * New = 0 degrees\\
  * Waxing Crescent =  0 - 90 degrees\\
  * First Quarter = 90 degrees\\
  * Waxing Gibbous = 90 - 180 degrees\\
  * Full = 180 degrees\\
  * Waning Gibbous = 180 - 90 degrees\\
  * Third Quarter = 90 degrees\\
  * Waning Crescent = 90 - 0 degrees
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We used the term acute, right, obtuse, and straight to describe the angles formed.