The purpose of this study is to examine the relationship between the attitudes of pre-service science teachers regarding group work and their group work experiences. In addition, the purpose is to investigate the findings of group self-assessment and individual self-assessment for pre-service teachers who participate in group work. In this study, pre-service science teachers participated in group work comparable to the Lesson Study application. Group work consists of making lesson plans and lectures. Before the application process began, teaching candidates' views toward group work were examined. At the conclusion of the practice, a self-assessment of group work was conducted. In this study, a mixed methodology was employed. The quantitative and qualitative research results were individually examined and then jointly interpreted. According to the findings of the study, pre-service science teachers' attitudes toward group work were positive prior to the application. It is considered that this initial positive attitude considerably affects group work. Prior to group work, it was uncertain if pre-service teachers preferred group versus individual work. After the completion of the group activity, it was determined that all participants were pleased with the work process. At the conclusion of the application, the majority of participants reported that they appreciated the significance of teamwork and cooperation. It has been discovered that, in group work, group members take into account one another's thoughts and suggestions and work in harmony. It is believed that the participants' favorable attitude toward the group members' understanding and assistance led to this outcome. It is thought that effective in the perspectives of all groups about planning and task distribution that the group work was well planned. It was established that nearly all of the participants desired to take part in a similar group study again. It has become apparent that pre-service teachers believe the group work adds to cooperation and professional experience. In this context, it is felt that using group work akin to Lesson Study to train teacher candidates is advantageous.

Group work, Lesson Study, science teacher candidates, self-assesment, attitude