Learning goals: Teacher Facing Describe (orally) a figure on a coordinate grid and its image under a dilation, using coordinates to refer to points. Describe (orally) several dilations of one figure with the same center but different scale factors. Identify what information is needed to dilate a polygon on a coordinate grid. Ask questions to elicit that information. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 8.2 Dilations, Similarity, and Introducing Slope, Grade 8.