<![CDATA[An abstract is often presented separate from the article, so it must be able to stand alone. The lack of interactive digital learning media integrating local culture in elementary schools often leads to low student engagement and learning outcomes. This study aims to develop a valid, practical, and effective interactive E-LKPD based on the local wisdom of Purung Takadonga Ratu for fourth-grade students at SD Negeri Maloba, Sumba Tengah. Using a Research and Development (R&D) methodology with the ADDIE framework (Analysis, Design, Development, Implementation, Evaluation), this study involved 20 fourth-grade students. Data were collected through expert validation sheets, practicality questionnaires, and pretest-posttest cognitive assessments. Data were analyzed using percentage validity formulas, Shapiro-Wilk normality tests, Wilcoxon Signed-Ranks tests, and N-Gain score calculations. The results revealed that expert validation achieved an overall score of 98.33% (very valid). Practicality testing yielded 95.00% from the teacher and 84.17% from students (very practical). Furthermore, student cognitive learning outcomes significantly increased from a pretest average of 60.67 to a posttest average of 85.67 (+25.00 points). The Wilcoxon Signed-Ranks test confirmed a significant difference with Z = -3.476 and p < 0.001, while the average N-Gain score reached 0.4165 (Medium/Fairly Effective). Thus, the developed E-LKPD is highly feasible, practical, and effective for improving elementary students' learning outcomes.]]>
