Pengembangan E-LKPD Liveworksheet Berbasis Problem Solving Guna Meningkatkan Keterampilan Berpikir Kritis Peserta Didik

Development of Electronic Student Liveworksheet Based on Problem Solving to Improve Students Critical Thinking Skills on Acid-Base Material

Penelitian ini bertujuan untuk mengembangkan E-LKPD liveworksheet berbasis problem solving guna meningkatkan keterampilan berpikir kritis peserta didik pada materi asam basa. Latar belakang penelitian ini didasarkan pada rendahnya keterampilan berpikir kritis peserta didik, khususnya pada indicator interpretasi, analisis, inferensi, dan eksplanasi, serta terbatasnya penggunaan media pembelajaran digital yang mendukung pembelajaran aktif. Jenis penelitian ini adalah Research and Development (R&D)  menggunakan model 4D dengan uji kelayakan menurut Nieveen yang mencakup uji validitas, kepraktisan, dan keefektifan. Instrument penelitian berupa lembar validasi ahli, angket respon peserta didik, lembar observasi aktivitas peserta didik, dan tes keterampilan berpikir kritis. Subjek penelitiaan adalah peserta didik kelas XI SMAN 1 Gedangan. Hasil penelitian menunjukkan bahwa E-LKPD yang dikembangkan memperoleh nilai modus validasi yaitu 4 dengan kategori baik (valid), kepraktisan berdasarkan angket respon peserta didik sebesar 95% dengan katgori sangat baik (sangat praktis), dan keefektifan berdasarkan hasil n-gain sebesar 0,50-1,00 dengan kategori sedang hingga tinggi dengan peningkatan pada keempat indikator berpikir kritis. Kesimpulannya, E-LKPD liveworksheet berbasis problem solving layak digunakan dalam pembelajaran untuk meningkatkan keterampilan berpikir kritis peserta didik pada materi asam basa. 

This study aimed to develop a problem solving electronic student worksheet using liveworksheet to enhance students' critical thinking skills on the topic of acids and bases. The background of this research is based on the low level of students' critical thinking skills, particularly in the indicators of interpretation, analysis, inference, and explanation, as well as the limited use of digital learning media that supports active learning. This type of research is categorized as Research and Development (R&D), employing the 4D development model and feasibility testing based on Nieveen, which includes validity, practicality, and effectiveness evaluations. The research instruments included expert validation sheets, student response questionnaires, student activity observation sheets, and critical thinking skill tests. The research subjects were Grade XI students at SMAN 1 Gedangan. The results showed that the developed electronic student liveworksheet obtained a mode validation score of 4, which falls into the good category (valid); the practicality, based on student response questionnaires, reached 95%, categorized as very good (highly practical); and the effectiveness, based on the N-gain score, ranged from 0.50 to 1.00, indicating medium to high categories with improvements across all four critical thinking indicators. In conclusion, the problem solving E-LKPD using liveworksheet is suitable for use in learning to improve students' critical thinking skills on the topic of acids and bases.