Application Of Interactive Demonstration Learning Model To Improve Understanding Of Simple Aircraft Material Concepts In Grade VIII Students Of SMPN 34 Pekanbaru
Keywords:
Interactive Demonstration, Concept Understanding, Simple Plane, Quasi Experiment.Abstract
This study aims to analyze the effectiveness of the Interactive Demonstration learning model in improving students' understanding of concepts in simple aircraft materials and to examine the significant differences between classes that applied this model and those using conventional methods. The research was motivated by the fact that students' understanding of science concepts, particularly on simple aircraft, remains relatively low. One of the causes is the dominance of teacher-centered instruction, with limited opportunities for students to engage in hands-on activities or active learning. The Interactive Demonstration model was selected as an alternative because it emphasizes student involvement, encourages inquiry, and connects abstract concepts to real experiences through experimental demonstrations. The method employed was a quasi-experimental design with a posttest-only control group. The sample consisted of two Grade VIII classes at SMPN 34 Pekanbaru during the even semester of the 2024/2025 academic year, chosen randomly. Data collection focused on students’ conceptual understanding, assessed through posttest results, and analyzed both descriptively and inferentially using the Mann-Whitney U test. The findings revealed that the experimental class, which was taught using the Interactive Demonstration model, achieved a higher mean score (79.16) compared to the control class (58.78). Furthermore, the analysis per indicator demonstrated that the experimental group consistently outperformed the control group across all aspects of conceptual understanding, including interpreting, exemplifying, classifying, and applying. The Mann-Whitney U test showed Asymp. Sig. = 0.000 (<0.05), indicating a statistically significant difference between the two groups. Therefore, it can be concluded that the Interactive Demonstration model is effective in enhancing students’ understanding of simple aircraft concepts. The study recommends that science teachers adopt Interactive Demonstration as a viable learning model to foster active participation, deepen students’ conceptual grasp, and promote meaningful learning experiences in science classrooms.
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