Akademik Veri Yönetim Sistemi
30th Conference of the International-Group-for-the-Psychology-of-Mathematics-Education, Prague, Çek Cumhuriyeti, 16 - 21 Temmuz 2006, ss.281-283
This study investigates pre-service and in-service mathematics teachers' subject knowledge of radian. Subject knowledge is investigated under the theoretical frameworks of concept images and cognitive units. Qualitative and quantitative research methods were designed for this study. Thirty seven pre-service and fourteen in-service mathematics teachers' completed a questionnaire which aims to assess their understanding of radian. Three pre-service and one in-service teachers were selected for individual interviews on the basis of theoretical sampling. The data indicated that participants' concept images of radian were dominated by concept images of degree.