Per-Olof Wickman is Emeritus Professor in Science Education at Stockholm University. His interests include (1) developing conceptual models assisting teachers in planning, analysing, designing and assessing science teaching and learning, (2) exploring how communication and discourse can be organized to support interest and learning, and (3) understanding conditions for professional development.Vaughan Prain is Professor in Education with a research focus on student multimodal learning in science and teacher professional learning to support this process.Russell Tytler is Deakin Distinguished Professor of Science Education at Deakin University. He researches student reasoning and learning through the multimodal languages of science, socio scientific issues and reasoning, school-community partnerships, STEM curriculum policy and practice, teacher professional learning, climate change education.