“…The above assumptions are in line with some previous studies which reported that the low communication skill can be caused by the both external and internal factors: 1) the low learning motivation of students (Filak & Sheldon, 2008;Kitsantas & Zimmerman, 1998;Nurwidodo, Hendayana, Hindun, & Sarimanah, 2018;Wicaksono, Minarti, & Roshayanti, 2018), 2) the students' passive habit in learning, 3) the low ability in mastering language components, 4) the low quality of students' mentality, 5) the bad interactions between teacher and students (Hodge & Anderson, 2007), 6) the low interaction quality among students, and 7) the improper learning media utilized by teacher (Firdausi, Prabawa, & Sutarno, 2017;Putra, Abdurrahman, & Suana, 2015;Spiliotopoulos, Antonakaki, Ioannidis, & Fragopoulou, 2016) Students' communication skill can be optimized through various ways. Cholvistaria, (2012); Siska et al (2013);and Tuada et al (2017) stated that to enact this skill, students could be motivated to implement science process in their daily communication particularly during discussion and presentation sessions.…”