Secondary schools are well placed to avert radicalization processes toward extremism because such trajectories often begin in adolescence. Adolescents are in the process of forming their identities, and most adolescents are idealistic, which makes them susceptible to groups that passionately pursue utopian visions. To avert the path toward extremism, Doret de Ruyter and Stijn Sieckelinck propose to balance a prevention approach with a positive educative ethos that is sensitive to the emotions involved in students' quest for meaning in life and identity formation. This involves schools being places where all students experience that they matter and where they can express their passion for their ideals and experiment with their identities without being ridiculed; at the same time, schools must guide students in learning that not everything they value will be accepted and that they must also take into account the interests and rights of others. The schools' role is thus complex and precarious, and teachers are in a position of navigating a politically sensitive minefield daily. Therefore, any theoretical proposition regarding what schools can realistically do to prevent extremism must be informed by everyday educational practice.
Research-based teacher education can be understood in different ways: as a call to understand teacher education institutions as research institutions, as the ambition to educate student teachers to have an inquiring attitude, as the basing of teacher education curricula on the latest research, or as a combination of all three.In this chapter we reflect on a method of connecting research, curriculum development and practice in teacher education, presenting a case study of a conversational community of teacher educators and researchers. The aim of the conversational community was to understand the process of curriculum design in teacher education as an inspiring and practical combination of design research, self-study, collaborative action research and curriculum study by teacher educators. This process was supported by a conversational framework in which curriculum development was understood as an ongoing dialogue between vision, intentions, design and practice in the teacher education curriculum. Using the conversational framework in this single case study of a conversational community, we have tried to connect teacher education research, curriculum development and practice in a meaningful way.