Development of android-based multimedia to improve student learning outcome in crystal structure subject of engineering materials course

Abstract

The study aims to develop and evaluate the android-based multimedia for Crystal Structure subject in the Engineering Materials course. A Crystal Structure is one of the materials contained in the Engineering Materials course. The concept must be mastered well so that students can understand the subject matter being taught. Meanwhile, without being facilitated with adequate media, students experienced difficulties in the learning process. This is because the material of this Crystal Structure subject is abstract and complex. The multimedia development used the Analysis, Design, Development, Implementation, Evaluation (ADDIE) model which consists of five stages. The multimedia developed was validated by experts to assess its feasibility. Furthermore, it was implemented with experimental methods on the control group and the experimental group to find out the impact on improving student learning outcomes. The samples used in this study were 18 DPTM class A students as a control group and 18 DPTM class B students as an experimental group, with an age range of 17-20 years. The results confirm that the android-based multimedia that was developed received a very good response from users and experts. Android-based learning multimedia can facilitate students in understanding the Crystal Structure subject. This can be seen from the increase in learning outcomes in the experimental class using android-based learning multimedia with an N-gain value of 0.94 and categorized in the high category.