The Organization for Economic Co-operation and Development (OECD) have evaluated 450 education reforms that different OECD countries have launched over the past seven years. They find that reforms have very different effects and conclude: 'Reforms are specific to the country's education system context' (OECD, 2015). The article presented here aims to develop a foundation for school development based on the Nordic context. The understanding presented is based on general didactic thinking and the values of the Nordic community school (Council of Ministers, 1976; Midtsundstad & Werler, 2011). On this basis, a theory of school development is argued for, based on conditions for teaching and learning, instead of a one-sided focus on results.

Keywords: School development, Allgemeine didactic, Nordic didactic, school culture, school theory,