What a great way to help us learn about the past, bringing in your great-granddad's scales!
Watch this video:
What do you notice? What do you wonder?
Act 2The scales are set to balance when the pan weights 50 grams. (That's 1¾ ounces.)
Just moving the weight for a moment, so you can see the 50:
How many pattern block squares would you estimate would balance the scales with the weight on 50 grams?
Act 3Watch the video: