Exploring the Effects of E-Multimedia Animation (E-MMA) on Materials Microstructural of Atomic Slip Plane on Materials Mechanical Properties: Conceptual Mastery and Problem-Solving Skills

Abstract

This study aims to explore the effects of e- Multimedia Animation (E-MMA) on microstructure shift materials on atomic properties of engineering materials with a focus on conceptual mastery and Problem-solving skills. The research sample consisted of 32 JPTM FPTK UPI students who were prospective vocational teachers. The level of difficulty of the engineering materials course varies in each subject, with the majority of students experiencing difficulties in the subject of phase diagrams (68.8%), shifts or movements of atoms and crystal structures (25.0%), and other subjects (6.3%). This research uses research and development methods with qualitative and quantitative approaches. The research instruments used are tests, rubrics, and questionnaires that have been validated by experts. The data processing process is carried out through qualitative and quantitative descriptive analysis, including the percentage of N-gain to measure the improvement of learning outcomes. The results showed that the application of E-MMA to atomic shear plane material resulted in increased mastery of concepts and problem-solving skills. The experimental class using E-MMA achieved an increase in mastery of concepts with an average of 62.82%, while the control class using image media only achieved an increase of 15.52%. This shows that E-MMA is effective in increasing mastery of concepts. In addition, the use of E-MMA also improves problem-solving skills. The experimental class achieved an increase in problem-solving skills by an average of 79.72%, while the control class only achieved an improvement of 15.98%. These results show that E-MMA makes a significant contribution to improving problem-solving skills. Based on these findings, it can be concluded that E-MMA is an effective method for improving mastery of concepts and problem-solving skills in microstructural shift materials in atomic properties of engineering materials. The implementation of E-MMA can help students understand and overcome the difficulties associated with atomic shear planes.