Enhancing Vocational Milling Machine Learning through PowerPoint Hyperlink-Based Interactive Media

The advancement of educational technology has led to the development of innovative learning media to improve student engagement and learning outcomes. This study aimed to develop and evaluate the feasibility and effectiveness of PowerPoint Hyperlink-based interactive learning media for milling machine material. The research employed the Research and Development (R&D) method using the 4D model, consisting of the Define, Design, and Develop stages. The research subjects were 20 tenth-grade students of the Machining Engineering Department at SMK Muhammadiyah 1 Kepanjen. The research instruments included expert validation sheets, questionnaires, pretest-posttest assessments, and documentation. Data were analyzed descriptively, while the effectiveness of the learning media was evaluated using the Wilcoxon Signed Rank Test and N-gain analysis. The results indicated that the learning media achieved a feasibility score of 87.2%, categorized as highly feasible, based on expert evaluations. The Wilcoxon Signed Rank Test revealed a significant difference between the pretest and posttest scores (p = 0.000 < 0.05). Furthermore, the N-gain score of 0.48 was classified as moderate, indicating that the learning media effectively improved students' learning outcomes. Therefore, the PowerPoint Hyperlink-based interactive learning media is feasible and effective as an alternative learning resource for milling machine instruction in vocational high schools.