The Charity, Learning Through Landscapes are appealing for good examples of strong design which make the most of school grounds to extend learning spaces. There are lots in Suffolk – I know, I’ve photographed many of them! The hunt is on throughout July and August. You can find out more from the Landscape Institute http://www.landscapeinstitute.org/news/Charity-calls-for-best-examples-of-outdoor-school-space.
This might be a good candidate designed by Liz Adams at Concertus