The class investigates the interplay between geometry and structural behavior of different structural systems categorized with respect to their load-bearing mechanism. Special focus is placed on form-active and surface-active structures like cable nets, membranes, gridshells, and continuous shells. The class will begin by providing a holistic overview of ancient and cutting-edge form-finding approaches and analysis methods. Using playful physical experiments, students will gain a hands-on understanding of how different structural states can affect the shape of a structure and how this interrelation could be used creatively to drive the design process.