<![CDATA[Pembelajaran padaaabad ke-21 menuntut proses yang semakin kompleks dan adaptif terhadap dinamika perkembangan zaman. Kurikulum Merdeka mengarahkan pencapaian delapan dimensi profil lulusan, salah satunya kreativitas yang berkaitan dengan kemampuan individu dalam berpikir kreatif. Keterampilan ini menjadi kebutuhan penting bagi murid guna mendorong peningkatan mutu pendidikan di Indonesia. Penerapan model Project-Based Learning dinilai mampu memfasilitasi pengembangan kemampuan dalam berpikir kreatif tersebut. Penelitian ini diarahkan untuk mengembangkan e-book berbasis Project-Based Learning pada materi Keanekaragaman Hayati yang dinilai layak berdasarkan aspek validitas, kepraktisan, serta keefektifan dalam meningkatkan kemampuan berpikir kreatif murid. Prosedur pengembangan mengacu pada model 4-D yang meliputi tahapan define, design, develop, dan disseminate. Aspek validitas diperoleh melalui penilaian dosen ahli; kepraktisan ditinjau dari keterlaksanaan pembelajaran, respons murid, serta tingkat keterbacaan; sedangkan keefektifan diukur berdasarkan ketercapaian indikator berpikir kreatif dan hasil penilaian proyek. Analisis data dilakukan secara deskriptif kualitatif dengan menggunakan instrumen berupa lembar validasi, lembar observasi, angket respons, uji keterbacaan, tes, serta lembar penilaian proyek. Produk yang dihasilkan berupa e-book berbasis PjBL dengan fitur Bio-Think, Bio-Planning, Bio-Logbook, Bio-Showing, dan Bio-Evaluate yang terintegrasi dengan sintaks Project-Based Learning serta indikator berpikir kreatif. Hasil uji validitas menunjukkan skor rata-rata sebesar 3,83. Kepraktisan dari observasi keterlaksanaan pembelajaran 98,5%, respons murid 97,40%, serta uji keterbacaan pada level 10. Keefektifan dari ketercapaian indikator berpikir kreatif dengan kategori sangat baik, yaitu fluency, flexibility, originality, elaboration berturut-turut sebesar 92,5%; 94,3%; 93,2% dan 80,3% dan penilaian proyek 96,65%. Berdasarkan hasil tersebut e-book berbasis PjBL dinyatakan layak digunakan sebagai bahan ajar serta mampu melatih berpikir kreatif berdasarkan validitas, kepraktisan, dan keefektifan. Kata Kunci: Kemampuan Berpikir Kreatif, E-Book, Model Pembelajaran Project-Based Learning, Keanekaragaman Hayati. Learning in the 21st century demands increasingly complex and adaptive processes to the dynamics of modern development. The Independent Curriculum directs the achievement of eight dimensions of the graduate profile, one of which is creativity, which is related to an individual's ability to think creatively. This skill is a crucial requirement for students to drive improvements in the quality of education in Indonesia. The application of the Project-Based Learning model is considered capable of facilitating the development of creative thinking skills. This research is directed at developing a Project-Based Learning-based e-book on Biodiversity material that is deemed feasible based on aspects of validity, practicality, and effectiveness in improving students' creative thinking skills. The development procedure refers to the 4-D model, which includes the stages of define, design, develop, and disseminate. Validity is obtained through assessments by expert lecturers; practicality is reviewed from the implementation of learning, student responses, and readability; while effectiveness is measured based on the achievement of creative thinking indicators and the results of project assessments. Data analysis was conducted descriptively and qualitatively using instruments such as validation sheets, observation sheets, response questionnaires, readability tests, tests, and project assessment sheets. The resulting product is a PjBL-based e-book with Bio-Think, Bio-Planning, Bio-Logbook, Bio-Showing, and Bio-Evaluate features integrated with Project-Based Learning syntax and creative thinking indicators. The validity test results show an average score of 3.83. The practicality of the learning implementation observation is 98.5%, student responses are 97.40%, and the readability test is at level 10. The effectiveness of the achievement of creative thinking indicators with a very good category, namely fluency, flexibility, originality, elaboration respectively at 92.5%; 94.3%; 93.2% and 80.3% and project assessment is 96.65%. Based on these results, the PjBL-based e-book is declared suitable for use as teaching materials and is able to train creative thinking based on validity, practicality, and effectiveness. Keywords: Ability Creative Thinking, E-Book, Project-Based Learning Model, Biodiversity. ]]>
