2021 Issues Vol. 10, No. 1 2020 Issues Vol. 9, No. 1 2019 Issues Vol. 8, No. 2Vol. 8, No. 1 2018 Issues Vol. 7, No. 2Vol. 7, No. 1 2017 Issues Vol. 6, No. 2Vol. 6, No. 1 2016 Issues Vol. 5, No. 2Vol. 5, No. 1 2015 Issues Vol. 4, No. 2Vol. 4, No. 1 2014 Issues Vol. 3, No. 2Vol. 3, No. 1 2013 Issues Vol. 2, No. 2Vol. 2, No. 1 2012 Issues Vol. 1, No. 2Vol. 1, No. 1 2020 2020 Volume 9, Number 2, 2020 September Ethnomathematics Exploration of Tapis Lampung Fabric as a Means of Mathematics Learning on Geometry Materials, Nurul Arsita, Denik Agustito and Sri Adi Widodo (pp. 1-10). Role of Data Mining in Chemistry Education Research, Florence O. Ezeudu, Florence O. Attah and Stephen C. Nwafor (pp. 11-18). Effects of Running Time-Oriented EPL Program on Computational Thinking of Elementary School Students, Woojong Moon and Jonghoon Kim (pp. 19-26). Integrative Ways that the Knowledge of Polyhedra have Developed in History: Implications for Art & Design Education, Hyun-Kyung Lee (pp. 27-34).