Examination of Pre-Service Teachers' Pedagogical Content Knowledge Concerning the Concept of Variable in Terms of Students' Errors

The aim of this study was to examine the pre-service teachers' pedagogical content knowledge concerning the concept of variable to examine students' knowledge of understanding students and knowledge of instructional strategies in the context of data components. It was designed in terms of qualitative research approach and the case study method was used in the study. The participants of this study consisted of 72 seventh grade students and 63 pre-service mathematics teachers. As the data collection tool of the study, the form which consists of open-ended questions of Soylu's (2008) work was used. In the analysis of data, the descriptive analysis technique was used. At the end of the study, results showed that pre-service mathematics teachers' knowledge of instructional strategies was not on the level expected. In the light of the findings of this study, suggestions on teacher education were given.