- #1
Jusdat
- 2
- 0
Hi,
I am a primary school teacher and have just been observed by my headteacher and a "senior consultant" in a lesson on sound.
I asked the children to find the best insulator of an alarm clock from a range of materials wrapped around it.
The material that worked best was the newspaper. It was the thickest material as there were many pages.
The kids said that it was the best insulator as it was the thickest.
I agreed with them.
I was later told that I mislead the children (ten year olds) and it has nothing to do with the thickness of the material to muffle a sound.
Are they right? If there is any evidence that backs my theory that the thicker the material, the better it insulates, please point me in the right direction to show them evidence.
Thanks
I am a primary school teacher and have just been observed by my headteacher and a "senior consultant" in a lesson on sound.
I asked the children to find the best insulator of an alarm clock from a range of materials wrapped around it.
The material that worked best was the newspaper. It was the thickest material as there were many pages.
The kids said that it was the best insulator as it was the thickest.
I agreed with them.
I was later told that I mislead the children (ten year olds) and it has nothing to do with the thickness of the material to muffle a sound.
Are they right? If there is any evidence that backs my theory that the thicker the material, the better it insulates, please point me in the right direction to show them evidence.
Thanks