Snap Circuits are good for teaching the basics of how electronics work. MindStorms, in my mind, are really the best choice, despite the high cost. Nothing else

Snap Circuits are good for teaching the basics of how electronics work. MindStorms, in my mind, are really the best choice, despite the high cost. Nothing else is really as kid-friendly as I would like. My wife and I have purchased a few non-Lego sets and none of them have really been comparable.