When I tutor kids one on one, I’m usually sitting across from them, rather than next to them. Somewhere, about three or four years ago, I got tired of spinning the paper around, and started goofing with my kids, trying to write upside down. They’d have great fun poking me when I got my characters backwards, but now I’ve gotten so that I can do it pretty well. It helps that it’s mostly numbers and Xs & Ys.
New kids kind of boggle though, when I spring it on them the first time. I’m a bit surprised it’s so unusual that they’ve never seen it before. For me, it’s now almost as indispensable as my presentation remote.