Overview (AB Ed): Structures can be found in both natural and human-constructed environments, serving a
variety of purposes and taking a wide range of forms. In learning about structures, students investigate
the properties of materials used, and test them under different loads and forces. They examine different
ways that structural components are configured, analyze forces involved, and investigate resulting effects
on structural strength and stability. As part of their study, students also examine construction methods
used in the past and the present, and learn how science and technology link together in developing safe
and efficient designs that meet human needs.
Focusing Questions (AB Ed): How do structures stand up under load? What forces act on structures, and what materials and design characteristics contribute to structural strength and stability?
Key Concepts (AB Ed):
structural forms
material strength and stiffness
joints
forces on and within structures (loads and stresses)
direction of forces
deformation
structural stability
modes of failure
performance requirements
margin of safety