This article has as its main focus the contextual factors connected with teachers' teamwork. Firstly, it deals with the question of how to create reflections among teachers on the topic of teamwork. Their written answers function as empirical data for researchers and also as contributions to the further professional development of teamwork. Secondly, the authors discuss the content of teamwork in the sense of how teachers as a community might support the individual teacher's work with both adapted teaching and formative assessment.