1. Angle ABC is dynamic. You can drag point A so that the angle can move between 0 and 360 degrees.[br]Use your construction tools (compass and straightedge -- the tools in this applet) to construct the angle bisector of angle ABC.[br][br]2. Work with a partner. Explain each move to your partner and why you think it is a correct part of the construction. [br][br]3. Your partner will listen carefully to the explanation given and follow your instructions. Can your partner bisect an angle given your instructions? It should pass the drag test (remaining bisected no matter how large or small you make the angle. Be sure to verify the work is correct by measuring the angles.[br][br]4. Switch roles.