Unnes Journal of Mathematics Education (UJME) publishes research issues on mathematics education. The UJME processes manuscripts resulted from a research in mathematics education scope, which includes, but is not limited to the topics of didactic development research (DDR), research and development (RnD) in mathematics education, ethnomathematics, realistic mathematics education, psychology of mathematics education and technology in mathematical instruction. The manuscript must be original research, written in English, and not be simultaneously submitted to another journal or conference.