1. Department of Teacher Education, Faculty of Social and Educational Sciences, NTNU - Norwegian University of Science and Technology, Trondheim, Norway
2. Faculty of Education, Tianjin Normal University, Tianjin, People’s Republic of China
3. Department of Educational Leadership, Cato College of Education, University of North Carolina at Charlotte, Charlotte, NC, USA
4. Chemistry Education, Ludwig Maximilian University of Munich, Munich, Germany.