Prof. Dr. Cemalettin YILDIZ, a faculty member of the Primary School Mathematics Teacher Training Program at Giresun University's Department of Mathematics Education, participated online in the 21st International Istanbul Congress on Scientific Research in Science, Engineering, Architecture and Mathematics, held between May 23-25, 2025, with his studies titled “Identifying Teacher and Student Roles in Learning Environments Enriched with Activities Based on Mathematics Museums” and “The Examination of the Inclusion of Mathematicians in the Century of Türkiye Education Model Middle School Mathematics Curriculum”.