Classroom mode
A question for the whole room
One story to open. A room full of ideas to test.
Ready in three steps
- Open the story.Read and try the first pages together.
- Pause for a prediction.At the story’s question, read its choices aloud. Invite a vote and ask, “What makes you think that?”
- Run it. Watch. Wonder.Choose the class’s prediction, run the experiment, and compare what happened with your guesses.
Different guesses are welcome. The experiment gives everyone something to rethink.
Something to put on paper
A one-page prediction and observation sheet. No answers included.
After the experiment: discussion notes
Talk about what happened
- Predict: if we dunk the thermometer in ice, what does the red line do — and how fast?
- Predict: why does a super-skinny tube show the swelling so much better than a fat jar?
- Predict: what would happen to a thermometer filled with water when it hits 0°C?
Where it shows up in real life
- Comb-tooth expansion gaps in a bridge's road that give the swelling steel somewhere to grow
- Power lines sagging lower on a hot day because the metal has expanded
- A tight jar lid loosening after you run it under hot water
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