SJME (Supremum Journal of Mathematics Education) is a journal of mathematics education that publishes research papers and studies in the field of mathematics education. SJME is a biannual (January and July), peer-reviewed, open access journal, edited by the Mathematics Education, Faculty of Teacher Training and Education Science, University of Singaperbangsa Karawang, West Java, Indonesia. It addresses mainly to an expert in mathematics education, young researchers and also to other specialists in adjacent fields of research that focus their attention on general and particular issues related to mathematics education.