Pengembangan e-LKPD Berbantuan Polypad untuk Meningkatkan Kemampuan Representasi Matematis Murid Fase D pada Materi Prisma

Abstract

Mathematical representation skills needed to be developed because a good understanding of concepts through visual, symbolic, and verbal representations made it easier for students to solve problems. The developed e-LKPD was an electronic worksheet designed by integrating mathematical representations (visual, symbolic, and verbal) into each learning activity. The development of interactive technology-based learning tools was implemented to improve students' mathematical representation skills. This study aimed to produce a Polypad-assisted e-LKPD that was valid, practical, and effective in improving the mathematical representation skills of phase D students on prism material. This study was a research and development (R&D) study using the ADDIE model, which included the stages of Analysis, Design, Development, Implementation, and Evaluation. The research was conducted at MTsN 2 Jember in the even semester of the 2025/2026 academic year with one of the seventh-grade classes as the subject. The research instruments included validation sheets, pretest and posttest questions, as well as student and teacher response questionnaires. The results showed that the e-LKPD obtained an average score of 3.74, which was in the valid category. Student and teacher responses showed average percentages of 81.45% and 86.11%, which were categorized as practical. The effectiveness of the product was shown by an N-Gain value of 0.3, which fell into the moderate category, indicating an improvement in students' mathematical representation skills after using the Polypad-assisted e LKPD, and thus it was considered feasible for use in mathematics learning on prism material.