PENGEMBANGAN BOOKLET IDENTIFIKASI KARAKTERISTIK MORFOLOGI TANAMAN KAKAO (Theobroma cacao L.) SEBAGAI SUMBER BELAJAR BIOLOGI SMA/MA

Atik Septi Lestari, NIM.: 21104070002 (2026) PENGEMBANGAN BOOKLET IDENTIFIKASI KARAKTERISTIK MORFOLOGI TANAMAN KAKAO (Theobroma cacao L.) SEBAGAI SUMBER BELAJAR BIOLOGI SMA/MA. Skripsi thesis, UIN SUNAN KALIJAGA YOGYAKARTA.

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Abstract

This study was motivated by the difficulties of tenth-grade students in senior high schools (SMA/MA) in understanding biodiversity material, particularly in the classification of living organisms with a focus on the Plantae subtopic. These difficulties are caused by limited and less innovative teaching materials, as most learning resources are still in the form of textbooks and worksheets. This study aims to develop a booklet design on the morphology of cocoa plants, to determine its feasibility, and to evaluate its practicality in learning. The research employed a Research and Development (R&D) method using the ADDIE model, limited to the development stage. The developed product was tested for feasibility and practicality using questionnaires, with validity analyzed through Aiken’s V and Pearson Product Moment, and reliability using Cronbach Alpha. The results showed that the cocoa plant morphology booklet achieved a validity score of 0.826 from both material and media experts, categorized as very high. Reliability test results were 0.91 and 0.93, indicating very high reliability. Practicality testing by teachers showed a validity score of 0.867 and reliability of 0.87, while students’ responses showed a validity of 0.772 and reliability of 0.850. Overall, all assessment results were in the high to very high category, indicating that the booklet is valid, reliable, highly feasible, and practical to be used as a biology learning medium to help students better understand the morphology and characteristics of cocoa plants

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