Capable of entertaining an 18 year old...yea, it's that good!
I think this would be a great tool to give parents. Rather than let their children sit in the back seat playing meaningless games on the iPad on the way home, this time could be utilized as math practice.
How I Use It
This product made math fun. With variation in knowledge presentation, it forced me to think through my methodology for solving problems. For example, one question showed ___+5=13, but with a fun ball graphic that helped illustrate the problem and engage the player.