In this lesson, students will learn about three major types of bridges, identify tension and compression forces, and build models to discover how and where those forces act on each of the bridge types. The lesson concludes with a choice of engineering scenarios: having students build a model bridge to fulfill a function, or consider several scenarios and decide on the best type of bridge for each. A Youtube video shows the scenarios, but while this may be useful for teacher preparation, the video should not be shown to students, so that they can figure things out for themselves.
Educator and learner
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