Look, then try.
Choose a small gap that leaves enough paper resting on both supports. Sketch your design before building. Use matching paper sheets and the same blocks for comparisons. Keep the support height, gap and loading position unchanged when you test a different fold.
Work with a grown-up on a low surface. Use large lightweight blocks and stable, low supports. Keep fingers clear if the bridge slips. Never stand on the model bridge.
Use a finger, stylus or mouse in each drawing box. Type below it, or ask a grown-up to write your words. Your work stays in this tab. Save before refreshing or leaving.
My design
Draw your paper shape and supports.
My fair test
Draw where you will place the blocks.
Your ideas belong here. There is no score.
What are we learning?
A plan records your choices. Changing one feature at a time helps you interpret a comparison.
Prefer a worksheet?
Open the individual cartoon activity sheet to print or save. Use portrait orientation and fit to page.
Open worksheet to save ↓Try another bridge activity.
Build a Paper BridgeCompare flat and folded paper across the same small gap.
Draw · Type · Save
My Bridge PredictionPredict what will happen before putting blocks on your bridge.
Draw · Type · Save
My Bridge Test ResultsRecord what your flat and folded bridges actually hold.
Draw · Type · Save
Improve My Paper BridgeChange one feature and see what happens in another test.
Draw · Type · Save