Getting your kids started with DIY electronics is going to be much easier when you have a user-friendly educational kit like the littleBits Electronics Gizmos & Gadgets. It is an invention toolbox with motors, lights, servos, buzzers, and everything else your kids need to build things. It comes with 15 electronic building blocks and instructions for 12 projects.
The Gizmos & Gadgets Kit lets your child build a BubbleBot, BitBot, and other cool electronics. More importantly, it gets your children familiar with DIY electronics without putting them in deep water. The kit will ship in October.