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Case-Based Digital Learning Media for Enhancing Troubleshooting Skills in Refrigeration and Air Conditioning Education Kasmira Kasmira; Syahrul Syahrul; Muhammad Yusuf Mappeasse
Jurnal Pendidikan Terapan Vol 4, No 3 July (2026)
Publisher : Sakura Digital Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61255/jupiter.v4i3.1698

Abstract

Purpose: This study aimed to develop and evaluate case-based digital learning media designed to enhance students’ troubleshooting skills in refrigeration and air-conditioning education. Methods: The study employed a research and development approach using the ADDIE-ID model, comprising the Analyze, Design, Develop, Implement, Evaluate, and Integrate and Disseminate stages. The resulting web-based digital learning media, COOLTRACE (Case-Based Learning for Refrigeration Troubleshooting), was evaluated by two subject matter experts and two media experts. Practicality testing involved 20 undergraduate students, while effectiveness testing was conducted with 81 students using a one-group pretest–posttest design. The data were analyzed using descriptive statistics and normalized gain (N-Gain) analysis. Findings: COOLTRACE obtained validity scores of 97.50% from subject matter experts and 97.22% from media experts, indicating that the product met the required instructional and technical quality standards. The overall practicality score was 93.69%, demonstrating that students could access and use the media with minimal difficulty. Students’ mean scores increased from 71.46 on the pretest to 96.69 on the posttest, with a mean N-Gain of 0.84, classified as high. These findings indicate a substantial improvement in students’ troubleshooting knowledge and diagnostic decision-making following the intervention. Research Implications: COOLTRACE provides a practical digital learning resource for supporting systematic troubleshooting practice, particularly in learning contexts where opportunities for repeated fault-diagnosis activities using physical equipment are limited. Originality: This study contributes interactive web-based digital learning media that integrates authentic cases, guided diagnosis, corrective action sequencing, and immediate feedback within a systematic troubleshooting learning process.
The Application Of Youtube-Based Scaffolding Learning to Improve Student Learning Outcomes in Graphic Design Subjects at SMKN 4 Barru Inar; Muhammad Yusuf Mappeasse; Mustari S Lamada
Journal of Smart Education and Emerging Technology Vol 2 No 1 (2026) : July
Publisher : PT. Global Research Collaboration

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66314/jseet.v2i1.824

Abstract

Background/Context: The rapid development of digital technology necessitates the adoption of innovative instructional strategies in vocational education, particularly in practice-oriented subjects such as Graphic Design. Conventional teaching approaches often result in low student engagement and suboptimal learning outcomes, indicating the need to integrate digital media with appropriate pedagogical support to enhance the effectiveness of the learning process. Objective/Purpose: This study aims to enhance student engagement and learning outcomes through the implementation of YouTube-based instructional videos combined with a scaffolding approach in a Graphic Design course at a vocational high school. Method: This study employed a Classroom Action Research design involving Grade X students enrolled in the Computer and Network Engineering programme. The research was conducted in two cycles, each comprising the stages of planning, action, observation, and reflection. Data were collected through observations, documentation, and learning outcome tests, and were analysed using descriptive analysis. Results: The results indicate that the implementation of YouTube-based instructional videos integrated with a scaffolding approach improved the overall quality of the learning process. Student engagement and participation increased across the instructional cycles, with learners demonstrating greater independence and confidence in completing learning tasks. The approach also contributed positively to the improvement of students’ learning outcomes at the class level. Conclusion: The findings indicate that integrating YouTube-based instructional videos with a structured scaffolding approach effectively enhances student engagement and learning outcomes in Graphic Design, offering an adaptive instructional strategy for vocational education.