"I understand each step, but I don't see it." Reasoning and proof are difficult for many students because of the level of abstraction. Learn the tricks of how to visualize geometric argument by using GeoGebra. We present ready-to-use tasks for teaching similarity; hands-on activities are available for participants to easily create their own animation.

Presentation Format: Preservice and In-Service Gallery Workshop
Grade Band Audience: Preservice and Inservice, 9 to 12