This is beautiful!!!! Do you know of any resources to teach about the 137.5* iteration? I have never seen that. I teach fibonacci and the golden ratio but would love to incorporate the 137.5*. Is it called something particular?
Kelly, one of my pre-service teachers Deborah Leslie did a unit on that topic in my Reading across the Curriculum class. It was a really wonderful unit and highly differentiated. Do feel free to contact her via the Ning!