We got him the Turing Tumble [0] last year, and he loved it. He'll take years to work through all the challenges. I found The Boy Who Loved Math [1] years ago,

We got him the Turing Tumble [0] last year, and he loved it. He'll take years to work through all the challenges. I found The Boy Who Loved Math [1] years ago, and now he reads that on his own. [0] - https://www.turingtumble.com https://www.turingtumble.com [1] - https://www.amazon.com/Boy-Who-Loved-Math-Improbable/dp/1596433078/ https://www.amazon.com/Boy-Who-Loved-Math-Improbable/dp/1596...