Pengaruh Penerapan Geogebra Terhadap Kemampuan Berpikir Kritis Siswa pada Pembelajaran Bangun Ruang Sisi Datar
DOI:
https://doi.org/10.30605/proximal.v9i4.9802Keywords:
GeoGebra, Critical Thinking, Solid Geometry, Mathematics, InstructionAbstract
Penelitian ini bertujuan untuk menginvestigasi pengaruh penerapan aplikasi GeoGebra terhadap kemampuan berpikir kritis siswa dalam pembelajaran geometri bangun ruang di SMP Negeri 27 Makassar. Penelitian menggunakan metode pre-eksperimental dengan desain one-group pretest–posttest. Populasi penelitian mencakup seluruh siswa kelas VIII yang terbagi dalam 11 kelas. Satu kelas dipilih secara acak melalui teknik cluster random sampling, yaitu kelas VIII-8, yang terdiri atas 25 siswa. Data dikumpulkan melalui tes kemampuan berpikir kritis dengan rentang skor 0–100, angket respons siswa, dan lembar observasi aktivitas belajar. Rata-rata skor tes meningkat dari 17,56 pada pretest menjadi 78,04 pada posttest. Rata-rata N-gain sebesar 0,74 termasuk kategori tinggi berdasarkan kriteria yang digunakan dalam penelitian. Uji Wilcoxon Signed-Rank menunjukkan perbedaan yang signifikan antara skor pretest dan posttest (p < 0,05). Secara terpisah, respons siswa mencapai 78,13% (kategori baik), sedangkan aktivitas belajar mencapai 73,24% (kategori aktif). Temuan ini menunjukkan adanya peningkatan kemampuan berpikir kritis setelah pembelajaran menggunakan GeoGebra, disertai respons siswa yang baik dan aktivitas belajar yang aktif.
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