The Raspberry Pi platform is wonderful for learning electronics. With the Piper Raspberry Pi Minecraft Electronic Computer Kit, you will have everything you need to start experimenting. You get a wooden case with a LCD screen. You get LED lights, motion sensors, buzzers, buttons, and switches.
You get a Raspberry Pi 2 computer with this kit. Piper allows your kids to play in Minecraft, build a controller, add switches, do a whole lot more. Piper is an open source product.