Abstract
Given his expertise in the classroom and in school, the cooperating teacher is essential to teacher training. Expectations towards him are coming from ministerial authorities (gouvernement du Québec, 2002, 2008), but also from student teachers (Caron, Portelance and Martineau, 2013). In order to meet these expectations, the cooperating teacher is strongly encouraged to enroll in a continuous training process leading to enhance his training practices. With the intention of supporting the development of the expected cooperating teacher’s competencies (Portelance, Gervais, Lessard, Beaulieu et al., 2008), a research funded by the Quebec Ministry of Education [1] uses a collaborative approach with cooperating teachers gathered in a community of practice. The members are engaged in a reflection process and a co-construction of meaning (Bourassa, Philion and Chevalier, 2007). Discussions focus on their training practices. The analysis of their purposes emphasizes the manifestations of interactional dynamics that favor their professional co-development.