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by nickysielicki 3725 days ago
These are computer games, but I've had a lot of fun teaching my mom about recursion through Cargobot[1] and Robozzle[2].

I think it would be relatively simple for you to make this into a physical game-- hand tracing the execution with them.

[1]: http://twolivesleft.com/CargoBot/

[2]: http://www.robozzle.com (Use the javascript version, or the android app)