Many studies have highlighted the importance of community and cooperation in inclusive education. However, traditionally, teachers are trained to manage their classes alone. Along with the aspirations of inclusive education, there is high pressure to develop school cultures that are more communal and to reorient school personnel’s work, making it more collaborative, in order to meet the diverse needs of all students. In this research, we explored and compared the collaborative ways in which teachers supported their students in four schools in Austria, Finland, Lithuania, and Poland. As a conceptual framework, the research utilized theories of interprofessional teamwork. The researchers applied a theory-led thematic analysis to the research data. The main findings indicate that collaborative action needs to be an essential part of teachers’ work in an inclusive school. The schools and teachers implemented both proactive and reactive ways of constructing an inclusive pedagogy when they supported their students.