Thinking about rich learning environments - almost revisited

I am working up our paper Rich Learning Environments revisited
and wanted to use this as a placemarker for a few diagrams and some thoughts.
My previous post on the cognitive digital apprenticeship is also relevant and tracking back through of my posts on PLEs can help understand how the ideas have been developing.
so this was one way in which I was trying to explain a rich learning environment


and this is another