Cut Yuni Nurul Hajjina, S.Pd., M.Pd. was born in Aceh Besar, June 22, 1992. She is a lecturer at Mathematics Education Department of Syiah Kuala University, Indonesia. She completed her bachelor degree in mathematics education at the Syiah Kuala University in 2013. She completed her master degree in mathematics education at Surabaya State University in 2016. Her research interest includes mathematics teacher education and ethnomathematics.