Abstract The goal of the study was to conduct an in-depth investigation of how conflicts are resolved in schools, from a pupil- and a teacher perspective. Our intention was to view and compare pupils and teachers different opinions in the school environment. A major focus was put on different ways teacher handle conflicts and how they try to prevent them. The material was acquired by interviews with both teachers and pupils. The study is based on Jean Piagets and Lev Vygotskijs visions about the cognitive developmental stage for children. The result of the study shows the teachers need to be attentive and also that the pupils generally do not notice when the teacher works to prevent conflicts.