PENGARUH MODEL CONTEXTUAL TEACHING AND LEARNING BERBANTUAN VIDEO INTERAKTIF TERHADAP HASIL BELAJAR SISWA PADA MATERI KEANEKARAGAMAN HAYATI KELAS IV SDN 021 SUNGAI KUNJANG

Abstract

This research was motivated by the low academic performance of fourth-grade students in Biodiversity topics at SDN 021 Sungai Kunjang. This issue presumably stems from the overreliance on traditional teaching methods and the lack of engaging learning media. Therefore, this study aims to describe the effect of utilizing the Contextual Teaching and Learning (CTL) model combined with interactive video on students' learning outcomes. A quantitative approach with a quasi-experimental method and a Nonequivalent Control Group Design was employed. The study involved two groups: class IV A as the experimental class (26 students) and class IV C as the control class (27 students). Data collection was conducted using pre-tests and post-tests, which were further analyzed through the Shapiro-Wilk normality test, Levene's homogeneity test, N-Gain score calculation, and Independent Sample t-Test via IBM SPSS Statistics 27. The results indicated that the data were normally distributed and had homogeneous variances. The mean score of the experimental cohort increased significantly from 62.42 to 88.92, while the control group only shifted from 62.44 to 75.22. The superiority of this intervention is demonstrated by the experimental group's N-Gain score of 0.71 (high category), compared to the control group's score of 0.34 (moderate category). Hypothesis testing revealed a significance value (Sig. 2-tailed) of <0.0001, indicating that is rejected and is accepted. Additionally, the effect size measured via Cohen's d reached 1.403 (large category). Based on these findings, it can be concluded that merging the CTL model with interactive videos exerts a massive and significant positive impact on elementary school students' learning outcomes in biodiversity. ABSTRAK Penelitian ini dilatarbelakangi oleh rendahnya pencapaian hasil belajar siswa kelas IV SDN 021 Sungai Kunjang pada topik Keanekaragaman Hayati. Pemicu utamanya diidentifikasi berasal dari dominasi penggunaan metode mengajar konvensional serta minimnya pemanfaatan media edukasi yang bersifat interaktif. Merespons masalah tersebut, penelitian ini bertujuan untuk mengetahui pengaruh penerapan model Contextual Teaching and Learning (CTL) yang dipadukan dengan media video interaktif terhadap hasil belajar peserta didik. penelitian ini menggunakan pendekatan kuantitatif dengan desain eksperimen semu (quasi-experiment) melalui pola Nonequivalent Control Group Design. Subjek penelitian terbagi menjadi dua kelompok, yaitu kelas IV A selaku kelompok eksperimen (26 peserta didik) dan kelas IV C selaku kelompok kontrol (27 peserta didik). Data dihimpun menggunakan instrumen pre-test dan post-test, kemudian dianalisis menggunakan uji normalitas Shapiro-Wilk, uji homogenitas Levene's Test, penghitungan skor N-Gain, serta uji t dua sampel independen melalui bantuan IBM SPSS Statistics 27. Berdasarkan hasil olah data, diketahui bahwa data berdistribusi normal sekaligus memiliki varians yang homogen. Rata-rata nilai kelompok eksperimen mengalami peningkatan signifikan dari 62,42 menjadi 88,92, sementara kelompok kontrol hanya meningkat dari 62,44 menjadi 75,22. Keunggulan model intervensi ini diperkuat oleh perolehan nilai N-Gain kelas eksperimen sebesar 0,71 (kategori tinggi), melampaui kelas kontrol yang hanya meraih 0,34 (kategori sedang). Melalui pengujian hipotesis, ditemukan nilai signifikansi (Sig. 2-tailed) <0,0001, yang berarti  ditolak dan   diterima. Selain itu, pengukuran ukuran efek melalui rumus Cohen's d menghasilkan angka 1,403 (kategori besar). Dengan demikian, dapat disimpulkan bahwa penggabungan model pembelajaran CTL dengan video interaktif memberikan dampak positif yang masif dan signifikan terhadap hasil belajar keanekaragaman hayati siswa di sekolah dasar.