Curated OER
Stress and Strain
Students use working models to show the stress and strain in the movements in the earth's crust. In this stress lesson students complete a lab in which they construct a model.
Curated OER
Design & Technology: Materials Strength
Students investigate the function of a floor stretcher and some of the past designs. The goal is to improve the design durability and ease of use. Then they sketch their ideas and write a rationale for changes made to the structure.