Join us in using GeoGebra to explore similar and congruent triangles. Along the way, we will investigate relationships between construction and transformation. We will see how to use wait time to create space for student thinking and conjecturing. By the end, we hope that you will see creating proofs as problem solving and be able to take these ideas back to your classroom. Please bring a laptop or tablet with GeoGebra if you can; laptops will be provided as needed.