Note: Some readers may need to click through to view the embedded video.
My conceptual physics class was chugging along just fine the other day. Then a kid asked for some paper towel. When I took out a giant roll from under the sink, the day’s lesson took a detour which would make Dan Meyer proud.
Kid: “Whoa! How long would it be if you unrolled the whole thing?”
Me: “I don’t know…you want to find out?”
Me: “OK. But you’ll need to make a prediction first.”
Time to unroll!