Duano Sapta Nusantara is a faculty member in the Department of Mathematics Education at Sriwijaya University. After graduating from Sriwijaya University in 2018 with a bachelor's degree in Mathematics Education, he was awarded a scholarship for the Master's Education Program towards Doctoral Degrees for Superior Graduates (PMDSU). This scholarship allowed him to pursue a master's degree at Sriwijaya University in one year (2019) and a doctorate for two and a half years (2023). He is a lecturer and research assistant at Sriwijaya University for "A Couple of Professors" in Mathematics Education. In addition, he serves on the editorial boards of the Mathematics Education Journal (JPM)-Sinta 2 and the Sriwijaya International Journal of Lesson Study (SIJ-LS).