Link wooden clothespins together by their spring ends to form a chain, then stretch the chain between two points as a small bridge. Test whether a toy car or small figure can cross without the chain falling apart.
What you need
- wooden clothespins
- two supports (books or blocks) to span
How to do it
- 1Clip pairs of clothespins together at the spring end to start a chain.
- 2Keep adding clothespins until the chain is long enough to span the gap between two supports.
- 3Stretch the chain across the gap and test it with a light toy or figure.
- 4If it sags or breaks, reinforce the weak links or try a wider chain for more strength.
Variations
- If clothespins are in short supply: paper clips linked into a chain work the same way, just lighter-duty.
- How it ends: a successful crossing without collapse is the clear win condition.
💡 Parent tip
Let a few failed crossings happen before offering any hints — the trial and error is where the engineering thinking actually develops.
What your child develops
- Fine motor strength — squeezing and linking clothespins is genuinely demanding hand exercise
- Structural intuition — learning which chain configurations hold weight and which don't
- Persistence through failure — a collapsing bridge invites another attempt rather than giving up
Safety notes
- Supervise closely with a child who still mouths small objects.
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