Michel Grangeat is Professor Emeritus of Educational Sciences at University of Grenoble Alpes, France. Michel's research focuses on the activities of professionals in the field of human relations and in collective contexts. The activities studied are those aimed at improving the well-being, development and learning of individuals, whether adults or children. Christine Harrison is Professor of Science Education at King’s College London, UK. Her research focuses on teachers’ conceptualisation of classroom assessment and particularly how Assessment for Learning pedagogy is implemented in STEM classrooms. Her research studies enable her to work alongside teachers through a close-to-practice approach that both learns from and informs practice. Jens Dolin is Professor Emeritus of Science Education at University of Copenhagen, Denmark. He has a broad research portfolio in the learning and teaching of science with foci on development of students’ science competences and bildung, especially through cross-curricular education. The last decade the assessment aspects have been central together with addressing and involving policy stakeholders in the educational processes.