Also, Grinity,

DS loves Dungeons and Dragons (I did say the housemate is the resident nerd, lol!) and is very interested in the strategy of the game. I think that all of the mathematical calculations required to play the game is helping him to appreciate the need to learn more than addition and subtraction.

We play D&D together at the kitchen table every evening that we are all together.

Any other ideas that you can think of that employ games or science are absolutely welcome. Thanks again.