This investigation focuses on developing animation-based educational media incorporating Banten cultural elements to enhance students' mathematical conceptual understanding of polyhedrons. The study implemented Research and Development (R&D) methodology through the 4D development framework (define, design, develop, disseminate) with ninth-grade students at SMP Negeri 10 Serang City as research subjects. The comprehensive development process encompassed in-depth needs assessment, systematic media planning, creation of animated videos harmonizing Banten cultural components with geometric polyhedron concepts, rigorous expert evaluation, and controlled distribution. Research findings indicate that the developed educational media achieved an overall validation score of 80.5% (highly valid category), with specific ratings of 86% from content specialists and 75% from media experts. Practicality assessment through student feedback questionnaires yielded an 82% result (highly practical category). The media's effectiveness was confirmed through substantial improvement in students' mathematical conceptual comprehension abilities, with average scores increasing from 30.16 in the pretest to 84.92 in the posttest, achieving an N-Gain indicator of 0.77 (high category). Based on these comprehensive evaluations, it can be concluded that the animation video learning media grounded in Banten cultural elements proved to be highly valid, exceptionally practical, and effective in enhancing students' mathematical conceptual understanding of polyhedrons.
Urohmah et al. (Wed,) studied this question.