Science and Education Publishing American Journal of Educational Research 2327-6150 4 8 2016 6 12 The Investigation of Strengths and Weaknesses of Primary School Teachers in Mathematics Knowledge 648 651 EN Samireh Saberi Afshin Erami Department of mathematics, Marvdasht Branch, Islamic Azad University, Marvedasht, Iran EDUCATION20164810 10.12691/education-4-8-10 2016 2 20 2016 4 18 2016 6 10 This study aims to evaluate strengths and weaknesses of primary school teachers in mathematical knowledge based on self-made exam. This exam consisted of ten mathematics questions. To determine the reliability of our exam, Cronbach's Alpha coefficient was used and was estimated to be 0.74 by SPSS software. For this purpose, 80 teachers of grade fifth and sixth participated in Shiraz city, Iran. Teachers were selected by valuable sampling. The responses from teachers have been analyzed. In this paper, we used Descriptive Statistics for the data analysis. Data analysis indicated that the average mark of primary school teachers was low in some mathematics areas and they were strong in few topics. As a result, we propose several solutions for the education system in order to reduce the weaknesses in mathematics teaching.