Algebra app....VERY COOL, even for toddlers

I ran across the COOLEST app yesterday. It teaches basic algebra through a very addictive game. I "played" all the levels and was blown away by just how intelligent the game design is. Bravo to the folks who created it. And, Rachel was able to complete the first level by herself. Yes, a three year old could play it. No, she has no clue it has anything to do with math. Go here: http://www.dragonboxapp.com/