1 - Getting Started ~4 mins
Listen. Can you hear that ticking? How could we make it quieter without turning it off?
Share one idea with a partner. We will try some real wrappings and find out which keeps the sound quietest.
2 - Which Wrapping Will Help? ~6 mins
Today’s word is muffle: make a sound quieter by covering it.
Our question: which wrapping makes the timer quietest — a sock, bubble wrap, paper, or nothing?
On your Investigation Journal page, draw or write your guess and one reason. Whisper it to your partner. Then we will try each one together.
3 - Try the Wrappings ~15 mins
We will try one timer and one box at the front. Everyone listens from our agreed spot.
A few helpers will place each wrapping. After every try, we all vote with our hands: thumbs up for louder, a flat hand for the same, and thumbs down for quieter than with nothing around it.
We will mark each result on the board so we remember what we heard.
4 - Record What We Heard ~8 mins
Look back at the guess you wrote first on your Investigation Journal page. Leave that guess as it is.
Now write or draw what your ears heard for each wrapping. Use the board chart to help: was the sound louder, the same, or quieter?
Which wrapping was quietest?
Word bank to help you: sock, bubble wrap, paper, nothing, louder, same, quieter.
5 - What Did We Notice? ~5 mins
Which wrapping was best at muffling the timer?
Once we agree, think: what do soft, thick materials seem to do to sound?
Where in our school are soft things used to keep it quiet? Think about the hall curtains or the carpet in our reading corner.
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