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Refreshed scheme (2026)

Lesson 4: Building trusses for a bridge

Constructing trusses for a strong, wooden bridge.
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Illustration of two sections of land with a channel between filled with water. On either side of the channel there are train tracks on the land with a gap over the channel.

Learning objective

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Before the lesson

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Lesson plan

1. Recap and recall

This activity revisits learning from Lesson 2: How can we make bridges stronger? to help the children recall key knowledge about strengthening structures with triangles.

Pair the children. Show the Presentation: Weakest to strongest. Ask the pairs to discuss the bridge designs and order them from weakest to strongest.

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Teach in presentation mode

In this unit

Lesson 1: Why do we need bridges?Lesson 2: How can we make bridges stronger?Lesson 3: How can we make longer bridges?
Lesson 4: Building trusses for a bridge
Created by:
Kapow Primary Team
Kapow Primary Team
Our team comprises experienced classroom teachers who love the foundation subjectsFind out more
Maintained by: Kapow Primary teamLast update: 2 October 2026

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