The aim of this research is to evaluate the process of primary school teachers to gain problem solving skills to students in science lesson. This research was carried out with the participation of 34 primary school teachers in Bandırma district of Balıkesir. One of the non-probability sampling methods, easy to reach case sampling, was used in determining the classroom teachers participating in the research. The research was designed according to the special case study, which is one of the qualitative research designs. In this research, semi-structured interview form was used to obtain the data. In the research, content analysis was used in the analysis process of the data obtained from the interview form. As a result of this research; the steps most frequently used by primary school teachers in the problem solving process; defining the problem, collecting information, generating temporary solutions, applying the most appropriate solution; The most common activities used by primary school teachers to improve students' problem solving skills is experimental activity and project assignment; the most frequently used seating arrangement primary school teachers in order to improve students' problem solving skills are cluster arragement and U-class seating arragement; It was determined that the most frequently used models and methods of primary school teachers to improve students' problem solving skills are experimental method and problem based learning model. Based on these results; With in-service trainings, it has been suggested that primary school teachers develop their skills in preparing activities to improve students' problem solving skills.