“…Indeed, when teachers view students' L1s as if they were an enemy or a taboo, students may take a defensive stance, which may cause their opposition to institutional rules and policies, tension in their relationships with instructors, and loss of motivation (Shvidko et al, 2015). Moreover, imposing a language policy that prohibits the use of learners' L1 assumes power and inequality (Berg, Hult, & King, 2001;Cheng, 2012;Hilliard, 2015;Song, 2011). Therefore, it is important that teachers and administrators establish the type of learning environment that diminishes power relations between English and students' L1 and values learners' linguistic and cultural backgrounds (Kubota & Lehner, 2005).…”