Bridge building is an engaging way to promote project-based learning. Students can gain an understanding of how forces act in a truss and experience the engineering design cycle as they identify weaknesses and modify their bridge design to improve performance. From middle school through high school, and even into college, bridge building competitions are a great way to demonstrate—and test—complex engineering concepts, like measuring applied load and deflection or determining the modulus of elasticity. Vernier engineering specialist Tom Smith goes over the technology that educators, and bridge building competition organizers, trust to help future engineers learn to build better bridges.