“…The importance of pre-service teachers' ability to recognize significant details in students' actions in order to attend, interpret and respond to students' thinking has been emphasized by teacher educators in recent years. 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).…”