This applet provides you with an opportunity to estimate angle measures. Move point C to create an angle measure that is close to the given measure. Click on ANGLE CHECK to determine if you were within 5 degrees of the actual measure. Click on the double blue arrows to get another problem. After you have practiced the applet, play the angle estimation game at http://nrich.maths.org/content/00/06/game1/StopClock.swf The game can be played with 1 or 2 persons.