The Mathematical Education is an international Korean or English language journal, publishing original refereed articles on all aspects of mathematics education. The aims of this Journal is to improve the quality of mathematics education environment by reviewing and publishing meaningful articles of studies involving empirical investigation and theoretical argumentation from which conclusions and implications can be drawn for future research and practice in mathematics education. Reports on thoughtful replications, new teaching aids and techniques being made in the teaching, learning, assessment and presentation of mathematics, Mathematical models arising from real situations, or critical reviews of Education policy and Mathematics curriculum are welcomed. The journal welcomes high-quality research in any methodological tradition and is open to innovative and unusual approaches.