In this activity, students measure themselves with a tape or string to compare themselves to the distribution of their gender. This is an activity I offer with some trepidation. I would only have students do this activity if there is a generally positive, non-body shaming atmosphere -- and I still wouldn't let students compare their results to others. I might choose to cut out waist and weight measurements. And of course, I would talk to the students beforehand about the fact that data has only been collected on "male" and "female," and why. This should take 20–30 minutes depending on how many tape measures you can find.