Özet:

The purpose of this research is to identify the pedagogical field knowledge of the subject of high school math teachers. In this context, the teachers have studied the subject-related information, student information and teaching strategy information. In this study, where the case study method is used, the purpose sample method is based and the participants of the study are composed of six mathematics teachers with different service periods. In the study, the data tripling was done using semi-configured conversation, semi-configured observation and document review techniques. All the conversations and observations under the application were recorded in audio, and the three teachers' lectures were recorded in video. In the analysis of the obtained data, the quality data analysis techniques have been used. For the analysis of the subject area information, the Nvivo 8 package program was used. At the end of the study, most teachers found that field knowledge and teaching strategy knowledge were insufficient, while student knowledge was partially sufficient. According to these results, recommendations for teachers training have been made. Keywords: Koni, subject field knowledge, teaching strategies knowledge, student knowledge, math teachers