This video lesson teaches students... * How to identify the corresponding congruent sides and angles in congruent triangles and polygons * Three ways to prove a triangle is congruent (SSS, SAS, ASA) * The difference between concave and convex polygons You receive not only the instructional video but accompanying notes for students to complete as they watch the lesson. Answer key is also included. Upon purchase, you will receive the student notes as well as the ability to stream the vi