“…This causes the students' mastery of concepts to be low (Mulyani, et al, 2020). In order to improve students' mastery of concepts, lecturers must prepare as much learning as possible (Shi, 2011;Mutawah, et al, 2019). Students who have mastery of deep concepts will have the ability to 1) identify problems, 2) analyze and evaluate data or events, 3) design research, 4) use and manipulate tools, materials or procedures; and 5) solving problems in order to understand facts about nature and the changes that occur in life (Pantiwati, et al, 2020;Surif, et al, 2012).…”