Purpose: Department heads play a pivotal role in the functioning of departments in secondary schools. However, quantitative research about the role of departmental leadership for the development of professional learning communities (PLCs) in subject departments in secondary schools remains scarce. As PLCs are seen as promising contexts for…

Research has shown that adequate support from the school environment is necessary to help beginning teachers in applying differentiated instruction (DI), but how schools can aid in this process remains unclear. This qualitative study explores how professional learning communities (PLCs), an indicator of a supportive school environment, can enhance…

The continuous professional development of teachers is crucial in our current knowledge-based society, yet empirical research on experienced teachers' learning outcomes is scarce. In this study, we examine perceived changes in classroom practices and in competence as outcomes. By making these outcomes measurable, we can relate them to several…