Length of a String....

My daughter is in the third grade and loves playing computer games and prefers them to practicing for school, so I'm thinking about doing an education game. Length of a piece of string says math and she's learning multiplication. A math drill game where the possible solution to the multiplication problem will be strings of various lengths and the player will have to guess the correct string to win the points.

So thats my basic plan for the game. I will do some base layout stuff tonight then work on a pathing routine to draw the 4 possible answer string.