Jurnal Pendidikan Matematika (JPM), an electronic peer-reviewed international journal, provides a forum for publishing the original research articles, review articles from contributors, and the novel technology news related to mathematics education. This journal is provided for writers, teachers, students, professors, and researchers, who will publish their research reports or their literature review articles (only for invited contributors) about mathematics education and its instructional for authors and readers worldwide. Start from July 2007, this journal publishes two times a year, in July and January. Besides regular writers, for each volume, the contents will be contributed by invited contributors who experts in mathematics education either from Indonesia or abroad. The journal invites original research articles and not simultaneously submitted to another journal or conference. The whole spectrum of research in mathematics education are welcome, which includes, but is not limited to the following topics Realistic Mathematics Education (RME) or Pendidikan Matematika Realistik Indonesia, Design/Development Research in Mathematics Education, Mathematics Ability, and PISA Task.