You decide a mission, do math to earn money to buy accessories for your rocket, and then launch it. There is a good creative aspect to it. Basically your kids will be forced to do math problems because they love creating and launching rockets. You can choose the math level – easy, med, hard (hard is akin to 11×12 or 234/13), and the equation type – addition, sub, mult, division. A built-in scribble pad is handy to work out the larger equations.