light bot is a software-development education game that helps teach software concepts to kids. its pretty cool, because i'm betting that the kids won't even notice the learning going on. a bunch of us at work played with it for a while and it kept us entertained. and some parts were actually challenging. we had engineers that came up with different solutions. the differences in choices were actually pretty interesting.
in all light bot seems like a good intro to some software techniques. its fun and challenging. i would recommend to try to have your students try it out. but, of course there are other options out there like scratch (we used scratch for lacy veach), alice, or even the old school logo. for the super advanced there is always something like processing.