Penerapan Model Pembelajaran Kooperatif Tipe Group Investigation (GI) untuk Meningkatkan Hasil Belajar Peserta Didik Sekolah Dasar pada Pembelajaran IPAS
DOI:
https://doi.org/10.24114/jgk.v10.i4.75757Keywords:
Group Investigation (GI), Hasil Belajar, IPAS, Pembelajaran Kooperatif, Penelitian Tindakan KelasAbstract
Hasil belajar Ilmu Pengetahuan Alam dan Sosial (IPAS) peserta didik kelas V-A SDN 066049 Medan Helvetia tahun ajaran 2025/2026 masih belum memuaskan karena sebagian besar belum mencapai Kriteria Ketuntasan Minimal (KKM) akibat pembelajaran yang berpusat pada guru. Oleh karena itu, Penelitian Tindakan Kelas (PTK) ini dilakukan untuk dapat meningkatkan hasil belajar peserta didik pada topik Keanekaragaman Hayati di Indonesia dengan menerapkan model pembelajaran kooperatif tipe Group Investigation (GI). Penelitian ini melibatkan 18 orang peserta didik pada semester genap. Data dikumpulkan melalui instrumen tes hasil belajar, lembar observasi, dokumen, serta catatan lapangan, lalu dianalisis secara deskriptif kuantitatif dan kualitatif. Hasil penelitian membuktikan bahwa model Group Investigation dapat meningkatkan prestasi belajar secara optimal. Nilai rata-rata kelas mengalami kenaikan yang mana awalnya sebesar 80,55 kini menjadi 81,33 di siklus pertama dan mencapai 87,66 di siklus kedua. Sementara itu, persentase tingkat ketuntasan belajar peserta didik meningkat dari 34% menjadi 39%, hingga akhirnya berhasil mencapai target 77%. Dengan demikian, model pembelajaran kooperatif tipe Group Investigation terbukti sangat efektif untuk meningkatkan partisipasi, kerja sama, dan kinerja serta hasil belajar peserta didik secara menyeluruh pada pembelajaran IPAS.
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