Background: Social media provides new opportunities for teachers to learn, communicate and develop professional relationships. It has been proved to be a valid and helpful resource for teachers' professional learning purposes. Objectives: While previous studies pursued questions like how participants feel, how to support interaction and why…

A growing body of research has emphasised the importance of school leadership for quality improvement in schools, which reinforces the importance of school leaders' continuous professional development in working life. However, less is known about the professional development of experienced principals. Against this background, the purpose of this…