Pengembangan Buku Ajar Kimia Menggunakan Model Discovery Learning untuk Meningkatkan Keterampilan Proses Sains

Abstract

This study focuses on the development of a chemistry textbook based on the discovery learning model to enhance students’ science process skills in the topic of redox reactions. The main objective is to produce a textbook that is valid, practical, and effective in supporting students’ mastery of chemical concepts while simultaneously fostering their scientific thinking abilities. The research employed a research and development approach by adapting the stages of analysis, design, development, implementation, and evaluation. Data were collected through expert validation, classroom implementation observations, science process skills tests, and teacher and student response questionnaires. Data analysis was conducted using both descriptive quantitative and qualitative methods to assess the quality of the textbook as well as its impact on students’ learning outcomes. The findings indicate that the developed textbook met the validity criteria based on evaluations from subject matter experts, media specialists, and pedagogical experts. Classroom implementation demonstrated a high level of feasibility and a significant improvement in students’ science process skills, including observing, classifying, interpreting data, and drawing conclusions. Both teachers and students expressed highly positive responses, reflecting the practical applicability of the textbook. These results suggest that a discovery learning-based chemistry textbook can effectively enhance students’ science process skills and conceptual understanding. This research contributes to the advancement of innovative, contextual, and 21st-century-oriented chemistry learning resources.