Pengembangan LKPD Interaktif Berbasis PhET untuk Remediasi Miskonsepsi Peserta Didik pada Persamaan Garis Lurus

Abstract

This study aim to developed an interactive PhET simulation-based Student Worksheet (LKPD) to remediate misconceptions on linear equations material, which is a common challenge for grade VIII students. This research used the ADDIE development model, which consists of five stages: analysis, design, development, implementation, and evaluation. The observation at SMPN 1 Gucialit, showed that many students have difficulty in understanding gradients and graphical representations of linear equations. The instruments in this study included validation sheets, test questionnaires and student response questionnaires. The implementation involved VIII grade student, included pretest, use of LKPD, and posttest. The data collection methods were questionnaires and tests. The results showed that the developed LKPD achieved a validity score of 3.67 (valid category), a practicality score of 3.65 (very practical category), and significant effectiveness based on the results of the Wilcoxon Signed-Rank Test p < 0.05(there is a significant difference between pretest and posttest). In conclusion, the interactive LKPD based on PhET simulation proved to be valid, practical, and effective to overcome misconceptions on linear equations material. This LKPD is recommended to be widely used and as a reference for developing other interactive LKPDs