Electronic Theses and Dissertation

Penelitian ini bertujuan untuk mengembangkan serta menguji validitas, praktikalitas, dan efektivitas e-LKPD berbasis Web Learning Management System (LMS) pada materi listrik dinamis untuk meningkatkan keterampilan berpikir kritis siswa SMP. Penelitian menggunakan metode penelitian dan pengembangan dengan model ADDIE. Subjek penelitian adalah siswa kelas IX SMPN 1 Indrapuri yang dibagi menjadi kelas eksperimen dan kelas kontrol. Instrumen penelitian meliputi lembar validasi ahli, angket praktikalitas guru dan siswa, serta tes keterampilan berpikir kritis. Hasil validasi menunjukkan bahwa e-LKPD memenuhi kriteria kelayakan dari aspek isi, kebahasaan, penyajian, dan tampilan. Hasil uji praktikalitas menunjukkan bahwa e-LKPD mudah digunakan dan mendukung keterlaksanaan pembelajaran. Uji efektivitas menunjukkan bahwa peningkatan keterampilan berpikir kritis siswa pada kelas eksperimen lebih tinggi dibandingkan kelas kontrol dengan nilai N-gain sebesar 0,85 (kategori tinggi). Peningkatan tertinggi terdapat pada indikator strategi, sedangkan indikator menyimpulkan menunjukkan peningkatan yang relatif lebih rendah. Dengan demikian, e-LKPD berbasis Web Learning Management System yang terintegrasi dengan simulasi PhET efektif digunakan untuk meningkatkan keterampilan berpikir kritis siswa pada materi listrik dinamis.

This study aimed to develop and examine the validity, practicality, and effectiveness of an e-Student Worksheet (e-LKPD) based on a Web Learning Management System (LMS) on dynamic electricity topics to improve junior high school students’ critical thinking skills. The study employed a research and development method using the ADDIE model, which includes analysis, design, development, implementation, and evaluation stages. The participants were nine-grade students of SMPN 1 Indrapuri, divided into an experimental class and a control class. The research instruments consisted of expert validation sheets, practicality questionnaires for teachers and students, and a critical thinking skills test. The validation results indicated that the developed e-LKPD met the feasibility criteria in terms of content, language, presentation, and visual design. Practicality analysis showed that the e-LKPD was easy to use and supported the implementation of learning activities. The effectiveness test revealed that the improvement in students’ critical thinking skills in the experimental class was higher than that in the control class, with an N-gain score of 0.85 (high category). The highest improvement was observed in the strategy indicator, while the concluding indicator showed a relatively lower increase. Therefore, the e-LKPD based on a Web Learning Management System is effective in enhancing students’ critical thinking skills on dynamic electricity material.