Learning goals: Teacher Facing Comprehend that the phrase “similar figures” (in written and spoken language) means there is a sequence of translations, rotations, reflections, and dilations that takes one figure to the other. Justify (orally) the similarity of two figures using a sequence of transformations that takes one figure to the other. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 8.2 Dilations, Similarity, and Introducing Slope, Grade 8.