As students create ideas about bridges, produce detailed plans, and construct a scaled model, they will explore the necessity of understanding proportionate triangles and the Pythagorean Theorem. Students will be given a scenario about an area in need of a bridge. After exploring various types of bridges and understanding the importance of the rigidity of a triangle, students will prepare multiple versions of a bridge that will meet various height, width, length, and weight requirements. Then, they will construct a scale model of their bridge and test its weight capacity. Student s will utilize proportions and apply the Pythagorean Theorem to determine various unknowns of triangles in their model. Finally, students will make a presentation about bridges, explain their experiences to the class, and test the capacity of their bridge.