Purpose: School leadership is fundamental in efforts to successfully implement school reform and improve student and teacher learning. Although there is an abundant amount of research on school leaders' formal training, assessment, and practice, little is known about their informal professional learning. In other words, how do school leaders learn…

In order for teams to build a shared conception of their task, team learning is crucial. Benefits of intra-team learning have been demonstrated in numerous studies. However, teams do not operate in a vacuum, and interact with their environment to execute their tasks. Our knowledge of the added value of inter-team learning (team learning with…