Teaching kids programming and robotics is going to be easier when you have a smart building set like ROKduino. This kit lets your kids design and build their own robots. It has a drag & drop interface for programming but full Arduino coding is also supported.
The developers are planning to offer angle, touch, light, and other sensors for the robot. Users can build a Beetle Bot, Scorpion, Ferris Wheel, and other robots. You can find out more on Kickstarter.