1. Department of Mathematics and Science Education, Faculty of Humanities, Sports and Educational Science, University of South-Eastern Norway—USN, 3679 Notodden, Norway
2. Department of Education, Faculty of Humanities, Social Sciences and Education, UiT The Arctic University of Norway, 9510 Alta, Norway
3. Faculty of Education, University of New Brunswick, Fredericton, NB E3B 5A3, Canada