The central idea of ​​this method was that individuals should actively acquire knowledge for themselves with little guidance from others (Mayer, 2004). To do this, the ideal learning environment must promote individualized learning and engagement in hands-on learning activities that promote individual interests. There is also emphasis on inductive reasoning to solve problems. This means that students don't just read or listen to the instructor's lecture, but take what they've learned and generate their own learning principles and hypotheses. In contrast to mastery learning, the focus of discovery learning is more on the thinking and learning process than on the results of interventions. Also essential to this learning method is the need for delayed feedback. With discovery learning, teachers give few suggestions to encourage more active thinking in students (Mayer, 2004). It is only after students have developed their ideas that teachers provide some form of guidance