“…By contrast, Purnamasari et al (2021) found that the digital skills of secondary school students were at a moderate level, whereas Perdana et al (2019), Laxman (2020), and Gui and Argentin (2011) found that these students were poor in such skills. Studies measuring students' mathematical thinking skills found that secondary school students were good at mathematical thinking (Akçakın & Kaya, 2020;Arslan & Yıldız, 2010;Göl, 2017;Kocaman, 2017). Similarly, studies conducted abroad reported that secondary school students had high mathematical thinking skills (Cortez, Cuevaz, & Castillo, 2019;Gine, 2010;Lutfiyya, 1998;Mashaqbah, 2017;Mustafa, Sari, & Baharullah, 2019;van Velzen, 2016).…”