PENGEMBANGAN MEDIA PEMBELAJARAN BIG BOOK FOTOSINTESIS PADA MATA PELAJARAN IPAS UNTUK SISWA KELAS IV SD

Ririn Setyowati (PGSD FKIP Universitas Kristen Satya Wacana)
Gamaliel Septian Airlanda (PGSD FKIP Universitas Kristen Satya Wacana)
Dani Kusuma (PGSD FKIP Universitas Kristen Satya Wacana)

ELEMENTARY : Jurnal Inovasi Pendidikan Dasar
Vol. 6 No. 4 (2026)

ABSTRACT Limited access to learning media and the difficulties experienced by fourth-grade students at SD Negeri Kebondowo 02 in understanding photosynthesis provided the basis for developing the Photosynthesis Big Book (BBF). This study aimed to develop BBF for IPAS learning and assess its feasibility, practicality, and effectiveness in supporting students’ science literacy. The development employed a Research and Development (R&D) method using the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) model. The trial involved 20 fourth-grade students. Data were collected through validation by media, material, and practitioner experts, teacher and student responses, and science literacy tests administered before and after product use. The validation results showed feasibility percentages of 82.5% from the media expert, 97.5% from the material expert, and 92.5% from the practitioner expert, all categorized as highly feasible. BBF practicality reached 82.5% based on teacher responses and 90.5% based on student responses, both categorized as highly practical. Science literacy scores increased from a mean of 40.50 to 82.00. The difference was statistically significant (Sig. = 0.000), while the N-Gain of 0.7224 (72.24%) was categorized as high. These findings indicate that BBF meets the criteria of feasibility and practicality and effectively supports the improvement of science literacy in a limited trial. ABSTRAK Keterbatasan media pembelajaran dan kesulitan siswa kelas IV SD Negeri Kebondowo 02 dalam memahami fotosintesis menjadi dasar pengembangan Big Book Fotosintesis (BBF). Penelitian ini bertujuan mengembangkan BBF untuk pembelajaran IPAS serta menilai kelayakan, kepraktisan, dan efektivitasnya dalam mendukung literasi sains siswa. Pengembangan menggunakan metode Research and Development (R&D) dengan model Analysis, Design, Development, Implementation, dan Evaluation (ADDIE). Uji coba melibatkan 20 siswa kelas IV. Data dikumpulkan melalui validasi ahli media, ahli materi, dan ahli praktisi, tanggapan guru dan siswa, serta tes literasi sains sebelum dan sesudah penggunaan produk. Hasil penilaian menunjukkan persentase kelayakan sebesar 82,5% dari ahli media, 97,5% dari ahli materi, dan 92,5% dari ahli praktisi, seluruhnya berkategori sangat layak. Kepraktisan BBF memperoleh 82,5% dari guru dan 90,5% dari siswa, keduanya berkategori sangat praktis. Pada pengukuran literasi sains, rata-rata skor meningkat dari 40,50 menjadi 82,00. Perbedaan tersebut signifikan secara statistik dengan nilai Sig. = 0,000, sedangkan N-Gain sebesar 0,7224 (72,24%) berada pada kategori tinggi. Temuan ini menunjukkan bahwa BBF memenuhi aspek kelayakan dan kepraktisan serta efektif mendukung peningkatan literasi sains pada uji coba terbatas.