Introduction: Triangle Truss Bridges

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Students design and build truss bridges, then test the strength of the bridge by attaching a scale.

You can find the lesson plan, 1-page project sheet, and more project ideas at

Step 1: Materials and Tools

Materials and Tools

The Engineering Creation Kit has everything you need for this project and many more from STEM Inventions.

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Step 2: Advanced Ideas: Truss Armor / House Frame

Truss armor is made of a simple craft stick and cube construction, but includes a handle near one end. This allows the user to grasp the structure from within and wear it like armor.

Another alternative is the house frame. Although it does not rely heavily upon trusses for its sturdiness, it does show the basic idea of what timber looks like within the frame of real houses.

You can find the wood cubes used in these ideas here.

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