I sooooo understand your pain! My DS10 is just like that. LOVES legos, nerf wars, video games, but only puts in the "required" work at school. He would never do extra credit or anything "just for fun". Just yesterday, I was looking at all the great Critical Thinking products and decided it would be a huge waste of money because DS would never do them. I'm very interested to follow this thread and see what people recommend. I'll look for the books Grinity referenced.