Explore how shape changes the strength of an everyday material. Learners plan and build a paper bridge, apply a load gradually, record where the structure bends or fails, then redesign it using evidence. The challenge values careful testing and clear reasoning rather than simply holding the greatest number of coins.
Creative / challenge time: 30–45 min
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Engineering • Structural design • Problem-solving • Testing • Data collection
Future Forge lesson formula
Look at different bridge types; discover why shape matters; learn about compression, tension and support; introduce the engineering design process.
Fold and test different paper shapes; compare flat paper with folded paper; predict which shape will be strongest.
Design and build a bridge using a limited amount of paper; test it by gradually adding weights; record design, prediction, test and result.
Improve the bridge without simply adding more paper using triangles, folds, tubes, beams or different support structures.
Explain the strongest design and the evidence showing why it was stronger.
A paper bridge capable of supporting as much weight as possible.
An adult should help to choose stable supports and suitable test weights, and should supervise any cutting. Let the learner's first design be genuinely theirs, even if it bends quickly. Prompt them to notice where the bridge changed shape and to connect each redesign decision to that evidence.
Build and test on a low, clear tabletop or floor area. Use stable supports that cannot topple, keep feet and fragile objects away from falling weights, and add only small, safe weights one at a time. Do not use glass, sharp metal, heavy tins or body weight as a load. Stop immediately if a support shifts. An adult should supervise scissors and manage any paper cuts or torn edges.
Work independently through a short, structured introduction and complete one practical outcome at home.
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