استقصاء المعرفة المفاهيمية المتعلقة بموضوعات التفاضل لدى معلمي الرياضيات في المرحلة الثانوية
The study sought to investigate mathematics teachers' conceptual knowledge regarding a list of Calculus topics. About 40 high school mathematics teachers in Riyadh, Saudi Arabia, were involved in the study. A test consisting of 14 open-ended questions chosen from “Assessing conceptual understanding in the calculus sequence” was used as an instrument of this study. The findings revealed that mathematics teachers’ level of conceptual knowledge is low- to-average. The teachers displayed that they were unable to use simple facts and relations regarding concepts of calculus when solving tasks as presented in a new context. Mostly, the mathematics teachers tended to deal with different concepts of Calculus as separate ones, and were unable to link between these concepts in order to reach logical conclusions. The findings showed that there is no statistically significant difference attributed to years of experiences and qualifications. (Published abstract)