Kelayakan Media Pembelajaran Berbasis Laboratorium Virtual pada Sub Materi Kimia Unsur Periode Ketiga

FEASIBILITY OF VIRTUAL LABORATORY-BASED LEARNING MEDIA IN THE THIRD PERIOD SUB-MATERIAL CHEMISTRY ELEMENT

Penelitian dan pengembangan ini bertujuan untuk mengetahui kelayakan media pembelajaran berbasis laboratorium virtual pada materi kimia unsur sub materi periode ketiga. Kelayakan media pembelajaran diperoleh dari 2 kriteria yakni validitas media berdasarkan penilaian validator dan keefektifan media berdasarkan peningkatan hasil belajar peserta didik. Jenis penelitian yang digunakan adalah model penelitian dan pengembangan 4P (pendefinisian, perancangan, pengembangan, dan penyebarluasan), namun hanya dibatasi pada tahap pengembangan yakni hingga tahap uji coba produk. Instrumen penelitian yang digunakan meliputi lembar telaah media, lembar validasi media, serta soal pretest dan posttest. Hasil penelitian yang dilakukan memperoleh persentase validitas isi sebesar 85,12% dan pada validitas konstruk sebesar 86,73% yang dikategorikan sangat valid. Persentase keefektifan media berdasarkan peningkatan hasil belajar peserta didik diperoleh skor N-gain dengan rentang 75-100% yang dikategorikan tinggi. Berdasarkan hasil penelitian tersebut, maka media pembelajaran berbasis laboratorium virtual layak digunakan sebagai media pembelajaran pada materi kimia unsur sub materi periode ketiga.

This research and development aim to determine the feasibility of virtual laboratory-based learning media in the third-period sub-material chemistry element. The feasibility of learning media is obtained from 2 criteria, namely media validity based on the validator's assessment, and media effectiveness based on improving student learning outcomes. The type of research used is the 4P research and development model (definition, design, development, and dissemination), but it is only limited to the development that the product trial stage. The research instruments used included media review sheets, media validation sheets, and pretest and posttest questions. The research obtained a percentage of content validity of 85.12% and the construct validity of 86.73%, categorized as very valid. The percentage of media effectiveness based on the increased in student learning outcomes obtained scores N-gain with a range of 75-100%, categorized as high. Based on the results of this study, the virtual laboratory-based learning media is feasible to use as a learning media on the third-period sub-material chemistry element.