Özet:

Detection of the conceptual errors existing in students, according to these findings, teachers have important tasks in employing the necessary learning environments and improving the errors by effectively using appropriate strategies in the classroom environment. The determination and implementation of the strategies necessary for the conceptual change in the students is a situation that the teacher should take part in the teaching. However, it is expected that there will be no errors in the teachers to ensure that this situation is desired. For this purpose, the study has studied the mental models of the trial class teachers, the science conceptual errors. This study, used by the case study, was conducted with six class teachers working in two private primary schools of a large district located in the Inner Anadolu Region. The work group is created by the measurement sampling technique between the purposes of sampling methods. The study’s data collection tool is conversation, and content analysis is used as a method of data analysis. According to the findings obtained from the study, experienced classmates have not been able to make sufficient definitions about the expression of "coveral errors" and they have not noticed the conceptual errors presented to them, and they have assessed the errors correctly. According to the findings obtained, it was suggested that teachers will support their professional development and provide the environments in which they can afford to solve conceptual errors in their classes, where mutual discussions are conducted.