Common divisor is one of the concepts that started to be learned in secondary school and forms the basis of many concepts. But students generally have difficulty in making sense of it. The purpose of this study is to investigate concept formation processes of common divisor through a case study on seven sixth grade students. To do this, we…

Reading comprehension is an important skill throughout all stages of education. However, Portuguese pupils still demonstrate difficulties in understanding what they read. In addition to cognitive and psychological factors, it is important to understand how this skill is addressed in textbooks. Here, we examined how reading comprehension is…

This study is a qualitative research which was conducted in order to reveal the instructional explanations of class teachers and primary school mathematics teachers working in state schools about division. A semi-structured interview form with three open-ended questions about division, prepared for this purpose, was examined by the experts. The…