This research addresses a common pedagogical challenge: the over-reliance on traditional lecture methods that inhibits fourth-grade students' comprehension of perimeter and area of plane shapes. To provide a more effective instructional tool, this study developed an animated video learning medium. This Research and Development (R&D) study employed the systematic ADDIE model and a mixed-methods approach to validate, determine the practicality, and assess the effectiveness of the medium for geometry instruction. The evaluation involved 29 fourth-grade students from SDN Dermo 2 Kediri City across a limited trial (n=9) and an extensive trial (n=20). Findings strongly support the media's utility: it was declared Valid based on high construction (96%) and material (85%) percentages, and Practical due to exceptional teacher (95%) and student (100%) response rates. Crucially, the media proved highly Effective, with average student performance rising from 82% in the limited trial to 92.5% in the extensive trial. This study concludes that the developed animated video medium is a highly validated, practical, and effective instructional tool, offering a significant solution for enhancing primary mathematics engagement and competence.
Jubaidah et al. (Fri,) studied this question.