“…Awareness of the difficulties experienced by students in their learning process is an important first step for teachers to design and manage mathematics lessons (Çiltas & Tatar, 2011;Wijaya, van den Heuvel-Panhuizen, Doorman, & Robitzsch, 2014;Wijaya, 2016;Saleh, Prahmana, Isa, & Murni, 2018). In this respect, analyzing students' learning difficulties is often seen as a crucial step to access students' reasoning (Brodie, 2014;Muttaqin, Putri, & Somakim, 2017;Mutohir, Lowrie, & Patahuddin, 2018). Analyzing students' difficulties can be a preliminary step in the process of improving student performance because it sheds light on key aspects of students' learning process that need to be developed.…”