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Development of android learning media for lubrication system competency in the concentration of light vehicle engineering skills at ma'arif nu 1 ajibarang vocational high school

Introduction

Development of android learning media for lubrication system competency in the concentration of light vehicle engineering skills at ma'arif nu 1 ajibarang vocational high school. Develop and evaluate Android learning media for lubrication system competency in light vehicle engineering vocational students. Significant improvement in learning outcomes found.

Abstract

This research aims to develop Android learning media on lubrication system competency. The purpose of this research is to create appropriate learning applications according to experts, determine the effectiveness and efficiency of the media, and determine the response of teachers and students to the media created. This research used the ADDIE development model. This research used a pre-experimental design in the form of a one group pretest-posttest design which was carried out at the Concentration of Light Vehicle Engineering Expertise at SMK Ma'arif NU 1 Ajibarang. The research results showed that Android learning media received a score from media experts of 85.16% in very worthy category and material experts received a score of 88.97% in very worthy category. There is significant differences between the result of pretest and posttest in experiment class (sig. 2-tailed 0.000 < 0.05) and also in control class (sig. 2-tailed 0.000 <0.05). Android media can improve student learning outcomes in experimental classes with an average percentage increase of 62.15% in quite effective category. Meanwhile, the control class that did not use Android media obtained an average percentage increase of 25.62% in the Ineffective category. There was no time efficiency in this research. The media received a teacher response of 95.45% in very good category and a student response of 77.41% in the "Good" category.

Review

This study presents the development and evaluation of Android-based learning media designed for improving lubrication system competency within light vehicle engineering vocational training. Employing the structured ADDIE development model, the research aimed to create an expert-validated, effective, and well-received educational tool. The findings indicate that the developed media is highly suitable and significantly improves learning outcomes in the experimental group, while also garnering positive feedback from both educators and students. Overall, the research offers a promising approach to enhancing technical education through the integration of mobile technology. A primary strength of this work lies in its structured development process, which was rigorously validated by high scores from both media experts (85.16% in the "very worthy" category) and material experts (88.97% also "very worthy"), confirming the media's quality and pedagogical soundness. Crucially, the study demonstrated a significant improvement in student learning outcomes in the experimental class, showing an average increase of 62.15% (categorized as "quite effective"), a result significantly superior to the control class's 25.62% increase. This quantitative evidence of effectiveness is further reinforced by very positive teacher responses (95.45% in the "very good" category) and favorable student feedback (77.41% in the "Good" category), indicating high usability and acceptance of the tool in a practical vocational setting. While the findings are largely positive, the abstract presents a slight methodological ambiguity regarding the research design, initially referring to a "one group pretest-posttest design" while subsequently discussing "experiment class" and "control class" results. Clarification of whether this was a true quasi-experimental design with distinct groups or a single-group study with a non-equivalent control would strengthen the methodological rigor. Additionally, the finding of "no time efficiency" warrants further exploration; understanding the specific reasons behind this and identifying potential optimizations could enhance the media's overall utility. Future research could benefit from longer-term studies to assess sustained learning and retention, as well as replication in diverse vocational contexts to confirm generalizability and address the identified efficiency aspect.

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