This article aims to reveal the adaptation and validation process of the Mentoring for Effective Mathematics Teaching (MEMT)--Mentee and --Mentor scales in the Turkish context, which was developed to examine preservice mathematics teachers' and mathematics mentor teachers' perceptions of mentoring practices within the Five-factor mentoring model. In the direction of this purpose, two studies were conducted between the years of 2020 and 2022. Within the first study, the instruments were translated into Turkish, validity and reliability analyses were conducted. Then, the second study was conducted to strengthen linguistic and cultural revisions of the instruments. The result of the studies showed that the Turkish versions of the instruments for mentor teachers and preservice teachers' perceptions of mentoring practices is usable. Furthermore, according to descriptive statistics, preservice teachers and mentor teachers gave high scores for each factor in the instruments, and the practices about Personal Attributes were perceived by them as among the most performed practices.