This paper discusses the cooperation between families and schools from the perspective of the UN Convention on the Rights of the Child (1989). Given that the principal purpose of the cooperation between families and schools is children's well-being, it is reasonable to expect the child's participation in situations of direct parent-teacher cooperation. The theoretical part of this paper is grounded on contemporary scientific findings in family-school cooperation and the role of the child in the process, while the empirical part seeks to determine whether the requirement for child participation is being fulfilled in family-school cooperation in Croatia. As a theoretical basis for the research, Hart's (1995) "Ladder of Participation" model has been used; the results can serve as guidelines for improving the existing school practices and introduce changes in school legislation relating to cooperation with parents.