I read an article that encouraged parents to allow their children to take things apart. It said that this was a good way for them to puzzle things out, even if they couldn't put it back together in working order. I know my youngest would love to do this sort of thing, and might even get most of it back together, but I'm at a loss for what items to look for to offer him. Also, what tools would a child use for this (supervised, of course)? This isn't my area of expertise, I'm not mechanically minded in the least, but he most certainly is. Every time a repairman or trademan of any kind comes to the house he is glued to them. He wants to watch them and ask what they are doing, what their tools do, and such.