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Simamora, Aprido
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Pengaruh Model Problem Based Learning Terhadap Kemampuan Berpikir Kritis Siswa Pada Materi Ekosistem KELAS V Sihombing, Gunawan Efendi; Simamora, Aprido; Sitio, Hetdy
Jurnal Ilmu Pendidikan dan Sosial Vol. 4 No. 4 (2026): Januari
Publisher : CV Putra Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58540/jipsi.v4i4.1189

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model Problem Based Learning terhadap kemampuan berpikir kritis siswa pada materi ekosistem kelas V SD Negeri 091544 Pardomuan. Populasi dan sampel dalam penelitian ini mencakup seluruh siswa kelas V yang berjumlah 20 siswa. Penelitian ini bersifat kuantitatif dan termasuk dalam jenis penelitian pra-eksperimen dengan rancangan penelitian One Group Design Pretest - Posttest. Peneliti menggunakan instrumen berupa 5 butir soal uraian yang berkaitan dengan materi Ekosistem. Instrumen ini digunakan untuk menilai pengaruh model problem based learning terhadap kemampuan berpikir kritis siswa kelas V pada pembelajaran IPAS, maka data dikumpulkan melalui observasi, tes dan dokumentasi. Setelah data penelitian terkumpul, dilakukan analisis menggunakan Indeks Aiken’s V, Uji N- Gain, Uji Normalitas, Uji Homogenitas, dan Uji Hipotesis.Analisa N-Gain menunjukkan bahwa nilai hasil perhitungan gain kelas eksperimen diperoleh rata - rata pretest sebesar 31,75 dan rata - rata posttest sebesar 81,25. Sehingga diperoleh gain 0,73 Artinya, kelas eksperimen mengalami peningkatan hasil kemampuan berpikir kritis dengan kategori sangat tinggi (g) ≥ 0,7. Hal tersebut dibuktikan juga dengan uji hipotesis diperoleh sig 0,000 < 0,05 maka Ho ditolak Ha diterima. Berdasarkan hasil tersebut dapat disimpulkan bahwa terdapat pengaruh model problem based learning terhadap kemampuan berpikir kritis siswa pada materi ekosistem kelas V SD Negeri 091544 Pardomuan tahun ajaran 2025/2026
The Effect of Contextual Learning Model on Students' Learning Outcomes in Science Subjects In Grade III Siahaan, Bethesda Angela; Panjaitan, Muktar B; Simamora, Aprido
Jurnal Ilmu Sosial dan Humaniora Vol. 4 No. 1 (2026): Januari
Publisher : CV Putra Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58540/isihumor.v4i1.1486

Abstract

This study aims to determine the effect of using the contextual learning model on the learning outcomes of Natural and Social Sciences (IPAS) students in Grade III at UPTD SD Negeri 122399 Jl. Mawar Pematangsiantar. The research instrument consisted of cognitive test items that had undergone validity and reliability tests, resulting in 20 valid and reliable items with a high reliability coefficient of 0.885. These test items demonstrated good discriminative power and an appropriate difficulty level for third-grade elementary students. Data were collected through pretests and posttests administered before and after the treatment using the contextual learning model. The pretest results showed an average student score of 44.4, with 23 students not meeting the Learning Achievement Criteria (KKTP), while the posttest showed a significant increase with an average score of 79.6 and 23 students declared passing. Data analysis using the Shapiro-Wilk normality test revealed a normal distribution, and hypothesis testing yielded a significance value of 0.00 (p < 0.05) with tcount > ttable. Therefore, it can be concluded that there is a significant effect of using the contextual learning model on IPAS learning outcomes. Observational results support these findings by indicating increased student engagement and interest during the learning process. Overall, this study concludes that the contextual learning model positively contributes to the improvement of IPAS learning outcomes for Grade III students at the schoo
Co-Authors PANJAITAN, MUKTAR B Siahaan, Bethesda Angela Sihombing, Gunawan Efendi Sitio, Hetdy