If anyone feels like exploring weight
If someone feels like exploring weight and mass with the bowl scale principle, why not make a bowl scale yourself. Two equally heavy buckets or baskets are tied to a hanger.
Then you are good to go. The idea comes from the book the core of mathematics by Nakken and Thiel. Did this in connection with a practice assignment, to the great interest of the children. Recommended to try for those who are interested.
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