Development of Electronic Student Worksheets Based on Multiple Representations for High School Students on the Topic of Buffer Solutions

Abstract

The objective of this study is to develop an electronic student worksheet that utilizes multiple representations for high school students studying buffer solutions. This electronic student worksheet was created using the 4D development methodology, which encompasses the following stages: Define, Design, Develop, and Disseminate. The electronic worksheets underwent a validation process conducted by an expert validator. Field trials have been conducted and revised by developers, resulting in a valid and practical electronic student worksheet. The research outcomes indicate that the validity assessment by material and media validators falls under the category of highly valid. The practicality test conducted on six chemistry teachers from several high schools in Pekanbaru is categorized as highly practical. The small-group trial conducted with six 12th-grade science students from SMAN 5 Pekanbaru has been categorized as highly practical. Field trial on 30 12th-grade science students from SMAN 5 Pekanbaru resulted in the category of being highly practical. The conclusion drawn is that the electronic student worksheets based on multiple representations developed with a 4-D model is valid, practical, and it can be used in chemistry education at schools.Penelitian ini bertujuan untuk mengembangkan lembar kerja peserta didik elektronik berbasis multipel representasi untuk peserta didik sma pada materi larutan penyangga. Penelitian memanfaatkan model pengembangan 4D yang telah dikembangkan oleh Thiagarajan meliputi tahap Define, Design, Develop dan Disseminate. Lembar kerja peserta didik elektronik telah dilakukan validasi oleh validator ahli. Telah dilakukan uji coba lapangan dan direvisi oleh pengembangan sehingga menghasilkan lembar kerja peserta didik elektronik yang valid dan praktis. Hasil penelitian menunjukkan bahwa (1) penilaian validitas oleh validator materi dan media berada pada kategori sangat valid; (2) uji kepraktisan terhadap enam guru kimia beberapa SMA di pekanbaru kategori sangat praktis (3) uji coba kelompok kecil kepada enam peserta didik kelas XII IPA SMAN 5 Pekanbaru memiliki kategori sangat praktis; (4) uji coba lapangan terhadap 30 peserta didik kelas XII IPA 5 SMAN 5 Pekanbaru di peroleh kategori sangat praktis. Kesimpulannnya lembar kerja peserta didik elektronik berbasis multipel representasi pada materi larutan penyangga kelas XII SMA yang dikembangkan menggunakan model 4-D sangat layak di gunakan dalam pembelajaran kimia di sekolah