Try the concept of recursion. Then move on to fractal images. That might grab her attention. (I don't know -- maybe reverse the order of introduction I sugge

Try the concept of recursion. Then move on to fractal images. That might grab her attention. (I don't know -- maybe reverse the order of introduction I suggested?) Don't bury her in the details. Look for the concepts you already share -- albeit in different media. P.S. Maybe she'd find something like Edward Tufte's work interesting/appealing.