Does anyone remember that toy you used to get in Lucky Bags? It was a small plastic plate with 15 sliding tiles in it. The Sixteenth position was empty, and the idea was to slide the other tiles into the space and eventually end up with all of them in numerical order.
I wonder if anyone would be prepared to manufacture the one I came up with, above? From what I keep reading, I think a lot of instructors would find it useful for running their lives right now.
It’s easier than the old version. They’re not supposed to go in any order, or anything. You just move them around randomly for a bit then ask a question about the one in the top left-hand corner.