I measured and weighed my students because they had no idea what they were in American numbers. It was really cute. I thought they'd be embarrassed to step on the scale. But nope. They were so excited. They lined up and I helped them read their weight.
Oh, and also, I have this kind of loud and lively, chubby Iraqi student and everyday she comes in the class and pokes me and whispers in a breathy voice "barbie". I'm not totally sure how I feel about it.