This eye-catching poster simplifies perimeter (2D) and surface area (3D) formulas into a clean, visual reference. Ideal for bulletin boards, math centers, or student handouts!

Part 1: The Perimeter Zone – Focuses on adding side lengths of triangles, trapezoids, and hexagons. Part 2: Grid Counting – Helps students visualize area vs. perimeter using unit squares. Part 3: ...