Well, we started homeschooling this week and DS9 has lots of downtime now while we 'deschool'. He has been doing a ton of reading, whittling and BUILDING. He has always been a Lego kid. Will work straight through the day without eating to complete a 1000+ project. Builds intricate spaceships of his own design. Now he's using popsicle sticks and 3x5 cards to build buildings with columns etc. I've exposed him to robotics and he's not quite as taken with it as just building.I have the Zome tool on order. Any other ideas for expansion?