Ki came to me today and said "I know what I want to do for school today." I reminded him we aren't doing 'school' this week. He said "Oh, yea. Well, I know what I want to do today that's fun and has thinking and figuring out how thinhgs work." and told me about a game he wants to design on the computer today.
I must say, my boys are experts at finding the "educational value" is anything. Amusingly so...
But Incredibots is a GREAT online game. Lots of thinking skills and physics application:
click here to see it: INCREDIBOTS: online Robotics Physics Game