“…When students generate representation/representations themselves, they are focused on the structure of the problems as they constructed representations, which promotes the students' use of metacognitive skills, thus contributed to understanding that later supported the solution performance (Manches & O'Malley, 2016;Terwel, van Oers, van Dijk, & van den Eeden, 2009). As previous researchers highlighted, although multiple representations facilitated problem solving (Elia et al, 2007), students still struggle in utilizing it (Yang & Huang, 2004), thus they tend to utilize only a single form of representation (Beyranevand, 2010).…”