| In the primary school, math teachers lay the foundation of continuous learning for students. They play a decisive role in the education system. At first, there’s a need to survey how much math knowledge they have on professional development, which has a direct influence on the curriculum implementation. Fraction teaching plays a very important role in the primary mathematics teaching. So, how much knowledge of fraction teaching the teachers have is one of the vital elements which influence students’ study.The purpose of this study is to investigate what kind of related knowledge of fraction teaching should primary school teachers have. The research was taken on three aspects:the knowledge of fraction, the knowledge of students’fraction learning and the related knowledge of fraction teaching. The process of the study is mainly conducted by questionnaire and individual interview. Teachers from Shanghai, Gansu and Shanxi took the questionnaires. Among them,137questionnaires and10interviews were selected to be analyzed. The results show that:the primary school math teachers perform poor in not only the knowledge of fractions but also the knowledge of the students’ fraction learning and the related knowledge of fraction teaching. According to the results of the study, the proposals are offered on the following aspects:the teachers themselves, pay more attention to the students, preservice and on-job training and information platform built for resource sharing. |