[dotancohen]

I have had much fun with my daughters at that age (and younger, and older) with Arduino kits from Ali Express. Just a few dollars' worth of parts were some of the best spent money I've ever spent.

I would do the programming, and the girls would help assemble the parts. But they would be with me and see the programming process. Soldering lead free is difficult, in the end some things I soldered myself with lead. And one of the girls is interested in the programming in the end.