Learning goals: Teacher Facing Determine the total length of multiple horizontal and vertical segments in the coordinate plane that are connected end-to-end. Draw a polygon in the coordinate plane given the coordinates for its vertices. Explain (orally) that coordinates can be a useful way of describing geometric figures or modeling real-world locations. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 6.7 Rational Numbers, Grade 6.