EFEKTIVITAS MODEL PEMBELAJARAN OPEN ENDED TERHADAP KEMAMPUAN BERPIKIR KRITIS PESERTA DIDIK MATERI OPERASI HITUNG BILNGAN CACAH KELAS III MIN 6 LAMPUNG UTARA

RAHMA, YULIANINGSIH (2025) EFEKTIVITAS MODEL PEMBELAJARAN OPEN ENDED TERHADAP KEMAMPUAN BERPIKIR KRITIS PESERTA DIDIK MATERI OPERASI HITUNG BILNGAN CACAH KELAS III MIN 6 LAMPUNG UTARA. Diploma thesis, UIN RADEN INTAN LAMPUNG.

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Abstract

ABSTRACT This study was conducted to address the low critical thinking skills of third-grade students at MIN 6 Lampung Utara in learning arithmetic operations with whole numbers. Many students experience difficulties in mathematics because the learning process is still teacher centered and focuses only on memorizing formulas without encouraging critical thinking. The purpose of this research is to determine the effectiveness of the open ended learning model in improving students’ critical thinking skills. This study employed a quantitative approach with a quasi-experimental design using a posttest-only control design. The population consisted of 79 students of grade III, while the sample was taken through cluster sampling, namely class III A as the control group and class III C as the experimental group. Data were collected using an essay test consisting of ten questions that measured critical thinking skills. The analysis was carried out using normality and homogeneity 1 Pendas : Jurnal Ilmiah Pendidikan Dasar, ISSN Cetak : 2477-2143 ISSN Online : 2548-6950 Volume XX Nomor XX, Bulan Tahun tests as prerequisites, followed by an independent sample t-test with SPSS version 26. The results showed that the data were normally distributed and homogeneous. The mean posttest score of the experimental class was 85.19, higher than the control class with 80.83. The t-test produced a significance value of 0.003 (<0.05), indicating a significant difference between the two groups. It can be concluded that the open-ended learning model is more effective in enhancing students’ critical thinking skills compared to the discovery learning model. This implies that the use of learning models that involve students actively in problem-solving can improve learning outcomes and foster higher-order thinking skills in elementary school mathematics. Keywords: Critical Thinking skills, Mathematics, Arithmetic Operations, Open-Ended Learning, Discovery Learning. ABSTRAK Penelitian ini dilatarbelakangi oleh rendahnya kemampuan berpikir kritis peserta didik kelas III MIN 6 Lampung Utara pada materi operasi hitung bilangan cacah. Peserta didik cenderung kesulitan memahami konsep matematika karena pembelajaran masih berpusat pada guru dan hanya menekankan hafalan rumus. Tujuan penelitian ini adalah untuk mengetahui efektivitas model pembelajaran open ended terhadap kemampuan berpikir kritis peserta didik. Metode penelitian menggunakan pendekatan kuantitatif dengan desain quasy experimental berbentuk posttest only control design. Populasi penelitian adalah seluruh siswa kelas III MIN 6 Lampung Utara yang 2 Pendas : Jurnal Ilmiah Pendidikan Dasar, ISSN Cetak : 2477-2143 ISSN Online : 2548-6950 Volume XX Nomor XX, Bulan Tahun berjumlah 79 orang, dengan sampel penelitian diambil secara cluster sampling yaitu kelas III A (kontrol) dan III C (eksperimen). Instrumen pengumpulan data berupa tes esai kemampuan berpikir kritis. Analisis data menggunakan uji normalitas, homogenitas, dan uji independent sample t-test melalui SPSS versi 26. Hasil penelitian menunjukkan bahwa data berdistribusi normal dan homogen. Nilai rata-rata posttest kemampuan berpikir kritis pada kelas eksperimen sebesar 85,19, lebih tinggi dibanding kelas kontrol sebesar 80,83. Hasil uji t-test menunjukkan nilai signifikansi 0,003 (<0,05), yang berarti terdapat perbedaan signifikan antara kelas eksperimen dan kontrol. Dengan demikian, penerapan model pembelajaran open ended lebih efektif dalam meningkatkan kemampuan berpikir kritis peserta didik dibandingkan model discovery learning. Temuan ini mengindikasikan bahwa penggunaan model pembelajaran yang melibatkan siswa secara aktif dalam pemecahan masalah matematika dapat meningkatkan kualitas pembelajaran dan mengoptimalkan keterampilan berpikir kritis siswa sekolah dasar. Kata Kunci: Kemampuan Berpikir Kritis, Matematika, Operasi Hitung Bilangan Cacah, Model Pembelajaran Open Ended, Discovery Learning.

Item Type: Thesis (Diploma)
Subjects: Pendidikan Guru Madrasah Ibtidaiyah
Divisions: Fakultas Tarbiyah dan Keguruan > Pendidikan Guru Madrasah Ibtidaiyah
Depositing User: LAYANAN PERPUSTAKAAN UINRIL REFERENSI
Date Deposited: 12 Jan 2026 04:39
Last Modified: 12 Jan 2026 04:40
URI: https://repository.radenintan.ac.id/id/eprint/42202

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