Development of an offline problem-based learning electronic student worksheet (E-LKPD) to enhance students’ scientific literacy
DOI:
https://doi.org/10.64171/JAES.5.4.37-48Keywords:
Offline E-LKPD, Problem-Based Learning, Science literacy, Science education, Instructional mediaAbstract
This study developed and validated an offline electronic student worksheet (E-LKPD) grounded in the Problem-Based Learning (PBL) model to enhance science literacy among eighth-grade students in the science subject at SMP Negeri 1 Siau Timur Selatan. Employing a Research and Development design supported by the ADDIE model, the study proceeded through stages of needs analysis, design, development, implementation, and formative evaluation. Data were collected through interviews, expert-validation questionnaires for material and media components, and product testing with teachers and students. The material expert provided a final validity score of 94%, while the media expert assigned a final score of 97%, both classified as “excellent,” indicating that the product is feasible for classroom use. Teacher evaluation yielded a score of 95% (“excellent”), demonstrating strong acceptance of the E-LKPD as a learning resource. Student responses in small-scale and large-scale trials resulted in scores of 93% and 92%, respectively, both within the “excellent” category, signifying high usability and positive learning experiences. These findings confirm that the offline PBL-based E-LKPD is valid, practical, and appropriate for supporting science learning in limited-Internet contexts, and it effectively promotes students’ science literacy development.
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