“…Hence, in the literature, there are various studies in which pre-service teachers' professional noticing skills were explored in different mathematical contents such as pattern generalization (Callejo & Zapatera, 2017); solving equations (Monson et al, 2020); derivative (Sánchez-Matamoros et al, 2015); fractions (Ivars et al, 2020); geometry (Baldinger, 2019;Ulusoy & Çakıroğlu, 2020); statistics (Shin, 2020;; exponents (Ulusoy, 2020) and arithmetic (Fisher et al, 2018;Jacobs et al, 2010;Schack et al, 2013;Warshauer et al, 2021). In these studies, researchers asked pre-service teachers to reflect on students' mathematical thinking through students' written work (Baldinger, 2019;Callejo & Zapatera, 2017;Ivars et al, 2020;Monson et al, 2020;Sánchez-Matamoros et al, 2015;Shin, 2020), class videos (Shin, 2021;Ulusoy, 2020;Warshauer et al, 2021) and video excerpts of clinical interviews (Fisher et al, 2018;Schack et al, 2013;Ulusoy & Çakıroğlu, 2020;Warshauer et al, 2021), or both student work and video clips (Jacobs et al, 2010). Consequently, pre-service teachers' noticing of student thinking was explored in specific content domains of mathematics.…”