This has many hundreds of examples and directions of exploration using only the nine creases that form the tetrahedron net in the circle. It goes deeply into the folding possibilities and the information generated within those nine creases that form the tetrahedron. This contains five years of what I did not know when writing The Geometry of Wholemovement. The presentation alternates between folding and discussion of 2-D and conceptual information that comes from the 3-D activity of folding the circle. It goes deeply into the information that is generated, the reformations of the tetrahedron circle net, and explores “soft folding” where patterns inherent in the circle are revealed by curving planes as well as straight edge and flat plan geometry style of modeling. This is a good companion to the Geometry of Wholemovement, being more vertical and the other more horizontal; either is a good place to start. They are all the same folding process, that does not change.
You can see more about this project on my blog or purchase the book online.