THE EFFECT OF THE GEOGEBRA-ASSISTED DISCOVERY LEARNING MODEL ON THE ABILITY TO UNDERSTAND MATHEMATICAL CONCEPTS IN STATISTICS MATERIALS
Abstract
The study aims to determine the effect of GeoGebra-Assisted Discovery Learning on students' mathematical concept understanding in Statistics (Measures of Central Order) at Xth grade students of SMA Negeri 1 Air Joman in 2025/2026 Academic Year. This research is quantitative, using a quasi-experimental research method with a Pretest-Posttest Control Group Design. The population in the study are all 6 Xth grade students of SMA Negeri 1 Air Joman in 2025/2026 Academic Year totaling 206 students. In this study, the sample taken are X-2 class as an experimental class with a Geogebra-assisted Discovery Learning model and Xth-4 class as a control class with a direct learning model. After completing the learning the posttest results obtained for the experimental class were higher than those for the control class. Thus, it can be concluded that the mathematical concept comprehension ability of students using the Discovery Learning model assisted by the GeoGebra application on Statistics (Measures of Central Order) material at Xth grade students of SMA Negeri 1 Air Joman in 2025/2026 Academic Year is better than the mathematical concept comprehension ability of students using the direct learning model at Xth grade students of SMA Negeri 1 Air Joman in 2025/2026 Academic year.
Penelitian ini bertujuan untuk mengetahui pengaruh model discovery learning berbantuan geogebra terhadap kemampuan pemahaman konsep matematis siswa pada materi Statistika (Ukuran Pemusatan Data) Kelas X SMA Negeri 1 Air Joman Tahun Ajaran 2025/2026. Jenis penelitian ini adalah penelitian kuantitatif, dengan menggunakan metode penelitian quasy experiment dengan desain penelitian yang digunakan dalam penelitian ini adalah Pretest-Posttest Control Group Design. Populasi pada penelitian ini yaitu seluruh siswa kelas X SMA Negeri 1 Air Joman yang berjumlah 6 kelas pada tahun ajaran 2025/2026 sebanyak 206 siswa. Dalam penelitian ini, sampel yang diambil adalah kelas X-2 sebagai kelas eksperimen dengan model discovery learning berbantuan geogebra dan kelas X-4 sebagai kelas kontrol dengan model pembelajaran langsung. Setelah proses pembelajaran selesai dilaksanakan, diperoleh hasil posttest kelas eksperimen lebih tinggi disbanding kelas kontrol. Dengan demikian diperoleh kesimpulan bahwa kemampuan pemahaman konsep matematis siswa menggunakan model Discovery Learning berbantuan Aplikasi Geogebra pada materi Statistika (Ukuran Pemusatan Data) kelas X SMA Negeri 1 Air Joman tahun ajaran 2025/2026 lebih baik dari pada kemampuan pemahaman konsep matematis siswa menggunakan model pembelajaran langsung pada siswa kelas X SMA Negeri 1 Air Joman tahun ajaran 2025/2026.
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