Under the guidance of Prof. Dr. Cemalettin YILDIZ, a faculty member of the Primary School Mathematics Teacher Training Program at Giresun University's Department of Mathematics Education, a "Free Mathematics Lesson" activity was organized for 7th-grade students at Bulancak Gazi Secondary School throughout May (2025) by 2nd-year mathematics teacher candidates. Each of the eleven teacher candidates taught mathematics for one hour a week for four weeks. This activity, being their first professional experience, contributed significantly to their careers, including fostering a greater love for teaching, building self-confidence, and familiarizing them with the classroom environment and students.