River Crossing Challenge: Classic Logic Puzzle and Torch Bridge
Children plan a sequence where choices have consequences. A ferry robot must carry a cat, a mouse and cheese across a river, never leaving unsafe pairs alone, and sometimes a passenger must be brought back. An expert torch-bridge puzzle then asks if four agents can cross in 17 minutes.
Part of the pack
Critical Thinking Worksheets for Ages 9-10: Mastermind Academy Logic Puzzle Pack
This is page 10 of the pack. Ages 9-10
About this worksheet
- Topic:
- River crossing and torch bridge
- Pack:
- Page 10 of 24 in Critical Thinking Worksheets for Ages 9-10: Mastermind Academy Logic Puzzle Pack.
How to use this worksheet
Cut out the tokens and play it on the river. Record every crossing in the trips table. For the bridge, work out who walks with whom and record each trip with its time.
Materials needed
- Scissors
- Pencil
- Toy figures (optional)
Extension activities
- 1Act it out with three toys and a shoe box boat.
- 2Try the bridge puzzle with different walking times.
Written by
Hemsweta Jain · Teacher Cheena
MBA and Early Childhood Educator, teaching since 2014 · Founder of RaisoActive, Mumbai
Every RaisoActive worksheet is designed and checked by the founder before publishing.
Published · Last reviewed
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