I’m currently doing a project that uses the growth of computer generated plants to visualize the progress students make in subjects like: adding, subtracting and multiplication (so yes it’s for kids). A good chance for me to read up on the mathematical aspects of L-systems. The site algorithmic botany is a great help, and apart from that just a great read anyway. Especially this downloadable book (!) is very usefull in my case. The projects delivery date is in about two weeks so I’ll post the results then.