A key question for governments to consider therefore is what they can do to enable schools to become innovative learning environments, while meeting the requirements of public accountability.
The analysis of these case studies shows that rethinking the four elements of the "Educative core" - learners, educators, content and resources - is fundamental to the innovation of any school or learning environment. Regarding content, innovative learning environments often seek to develop 21st century competences, as well as innovating specific knowledge domains or subject areas. Many of these practices go hand-in-hand with a more open and flexible use of space, informed by particular models of how learning should be organised. Here the aim is often to open up and “deprivatise” educational spaces, creating visibility and breaking down the close association between a particular learning space and a single teacher.
(http://oecdeducationtoday.blogspot.com/2013/09/designing-21st-century-learning.html)