Peter Grootenboer was a school teacher and middle leader for 12 years before moving into the tertiary sector. He received a national Jim Campbell Award for teaching excellence. He is now a Professor in Education at Griffith University.

Christine Edwards-Groves is Associate Professor at Charles Sturt University, Australia. She researches classroom interaction, dialogic pedagogies and professional learning, and is especially interested in practice theory.

Karin Rönnerman is a professor in Education at the University of Gothenburg. Her research is in the field of action research connected to professional learning and development of practices through middle leading.