Pengaruh Implementasi Pembelajaran Kooperatif Tipe Numbered Head Together (NHT) Terhadap Self Efficacy dan Hasil Belajar Matematika Siswa Sekolah Dasar

This study aims to determine the differences in the effect of the cooperative learning model Number Heads Together (NHT) on self-efficacy and mathematics learning outcomes of elementary school students. The population of the study consisted of all fourth-grade students at SD Negeri 03 Mamben Lauk, totaling 69 students, with 68 students selected as the sample using simple random sampling. This research employed a quasi-experimental design with a Single Factor Independent Group Design. The results of the first hypothesis test showed an F-value of 6.026 with a significance of 0.017 < 0.05, indicating that H₀ is rejected and H₁ is accepted. This means there is a significant difference in self-efficacy between students who received the NHT cooperative learning model and those who received conventional learning. The second hypothesis test revealed an F-value of 14.538 with a significance of 0.000 < 0.05, suggesting a significant difference in students’ science literacy between those taught using portfolio assessment and those with conventional assessment. The third hypothesis test yielded an F-value of 7.965 with a significance of 0.001 < 0.05, indicating a significant simultaneous difference in both self-efficacy and learning outcomes between students taught using the NHT model and those taught conventionally.