Do not under estimate their ability, the kids that is.
One example.
http://www.picbasic.co.uk/forum/showthread.php?t=10200

When YOU take the attitude that something is going to be difficult for someone to learn, then as long as YOU are doing the teaching it will be hard for them to learn.

Children are much easier to teach new concepts to than adults are. Adults "think" they know how things work. Remember the trouble you had with BASIC? That was because your understanding was based on pre-conceived notions from what you learned in the past. Children will not have that problem.