A Forgotten Age of Open-air Schools in the Netherlands, 1957

A Forgotten Age of Open-air Schools in the Netherlands, 1957

http://messynessychic.com/2016/03/15/classrooms-without-walls-a-forgotten-age-of-open-air-schools/?fb_comment_id=1098500133541605_1098609363530682#f7397d53bad18