Yesterday each student weighed the pumpkin they are working with this week.
We realized we couldn't just put the pumpkin on the bathroom scale I brought in from home. (We tried! It didn't work.) So we brainstormed as a class to figure out how we could determine the weight of each pumpkin.
Using problem solving strategies, we figured out if we weighed ourselves, and then weighed ourselves holding the pumpkin, we could subtract our weight from our weight holding a pumpkin and get the weight of the pumpkin.