Bridge Unit Study - Lesson 7: Bridge Design

My son designed several bridges.

What type of bridge would you build across a busy shipping waterway? How about over a deep ravine?

The book Bridges: Amazing Structures to Design Build and Test discussed advantages and disadvantages of many types of bridges including beam, arch, suspension, cantilever, draw, and hanging. It also addressed how the loads are carried, options for materials and brief changes throughout history.

What I really liked was the challenges the author posed to readers. Several times, kids were given a set of requirements and asked to design a bridge to meet those requirements. Each time my son was eager to design a bridge. Well he is far from an expert bridge designer, these questions enabled him to think about what he would do.

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