EFEKTIVITAS PROBLEM BASED LEARNING DAN PEMANFAATAN GEOGEBRA INTERAKTIF UNTUK MENINGKATKAN KEMAMPUAN PENYELESAIAN SOAL TRIGONOMETRI PADA SISWA SMAN 22 GOWA
DOI: https://doi.org/10.30605/x5czkq26
Problem Based Learning, GeoGebra Interaktif, Trigonometri
Abstract
Penelitian ini dilatarbelakangi oleh rendahnya kemampuan awal siswa dalam menyelesaikan soal perbandingan trigonometri serta kecenderungan pembelajaran konvensional yang kurang memberikan visualisasi konkret. Penelitian ini bertujuan untuk menguji perbedaan kemampuan penyelesaian soal trigonometri siswa sebelum dan setelah diterapkannya model Problem Based Learning dan pemanfaatan GeoGebra interaktif, serta mengukur tingkat efektivitas penerapannya pada siswa kelas X.5 SMAN 22 Gowa. Metode penelitian yang digunakan adalah pre-eksperimen dengan desain One Group Pretest-Posttest design. Sampel penelitian terdiri dari 32 siswa yang dipilih dengan menggunakan teknik cluster random sampling. Pengumpulan data dilakukan melalui tes tertulis (pretest dan posttest), lembar observasi keterlaksanaan pembelajaran, lembar observasi aktivitas siswa, dan angket respon siswa. Data dianalisis secara deskriptif dan inferensial dengan menggunakan uji paired sample t-test, one sample t-test, dan uji Wilcoxon (untuk data yang tidak berdistribusi normal). Hasil penelitian menunjukkan bahwa: (1) Terdapat perbedaan yang signifikan terhadap kemampuan penyelesaian soal trigonometri siswa sebelum dan setelah diterapkannya model Problem Based Learning dan pemanfaatan GeoGebra interaktif; (2) Penerapan model Problem Based Learning dan pemanfaatan GeoGebra interaktif secara keseluruhan belum mencapai tingkat efektivitas yang sepenuhnya ideal, karena rata-rata nilai posttest siswa belum mampu melampaui batas KKM yang telah ditetapkan. Meski demikian, penerapan model dan media pada penelitian ini telah memenuhi kriteria efektivitas minimal pada indikator lainnya.
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