I'm Dan and this is my blog. I'm a former high school math teacher and current head of teaching at Desmos. He / him. More here.

1 Comment

  1. When I do this activity (transitioning from stacked bar to pie) with my 6th graders, I have them cut out the stacked bar, and then we tape it end-to-end so that it becomes a circle (like a wristband?). If you’ve worked out the measurements ahead of time, the circle on your handout can have the same circumference as the length of the stacked bar — and then it can help the students to see the circle/bar relationship.

    I also let them wear the paper wristbands out of class, which might not work in your high school setting…..