Dayat Hidayat, S.Pd., M.Pd., M.Si. is an Assistant Professor in the Department of Mathematics Education at Universitas Negeri Surabaya (UNESA), Indonesia, and a Ph.D. student in Mathematics Education, Curriculum, and Instruction at Purdue University, USA. His research focuses on mathematical modeling in education, STEM education, preservice teacher development, and applied mathematics. His scholarly work has been published in several peer-reviewed international journals and conference proceedings. Dayat Hidayat earned his bachelor’s degree in mathematics education from Universitas Sultan Ageng Tirtayasa in 2014. He subsequently pursued a master’s degree in mathematics education at Universitas Pendidikan Indonesia (UPI), which he completed in 2017, and a second master’s degree in mathematics from Institut Teknologi Bandung (ITB), graduating in 2018. Upon completing his graduate studies, he began his academic career as an Assistant Professor at UNESA. From 2019 to 2024, Dayat Hidayat actively contributed to academia through teaching, research, publications, academic seminars, and community engagement. He has experience as secondary mathematics teachers and Prior to joining Purdue University, he also gained valuable experience serving as an SAT, GRE, and GMAT instructor at Kaplan Edupac Indonesia. Dayat Hidayat is deeply passionate about mathematics and mathematics education, a commitment reflected in both his teaching and research. Outside of academia, he enjoys sports, particularly soccer.