DESNA TULASFEGI Pengarang Elya Rosalina, M.Pd. Mat Dosen Pembimbing 2 Dr. Akmal Rijal, M.Pd. Dosen Pembimbing 1 Dr. Agung Nugroho, M.Pd Penguji 1 Yuni Krisnawati, M.Pd. Penguji 2 Dr. Akmal Rijal, M.Pd. Ketua Penguji DESNA TULASFEGI Contributor

The purpose of this study is to determine the completeness of Mathematics learning outcomes of fifth-grade students of SDN 2 ABS Perigi after the Numbered Heads Together (NHT) learning model was implemented. The method used is a quantitative research method with a pre-experimental design of one group pre-test and post-test group categories. The population and sample of this study were 20 fifth-grade students of SDN 2 ABS Perigi, consisting of 14 boys and 6 girls. The sample collection technique used was a saturated sampling technique. The data collection technique used a written test in the form of an essay. The analysis technique consisted of determining the average value and standard deviation, normality testing and hypothesis testing. The technique for determining the average value used a normality test while the hypothesis test used a one-sample z-test. The results showed that the average pre-test was 48.4 with a percentage of 25% or 5 students who completed while the average post-test was 73 with a percentage of 90% or 18 students who completed. Based on the results of the z-test calculation, the calculated zvalue (5.60) > ztable (1.64) was obtained. Thus, it can be said that Ho is rejected and Ha is accepted, the hypothesis proposed by this study is accepted as true. So it can be concluded that the Application of the Numbered Heads Together (NHT) Learning Model in Mathematics Learning for Class V Students of SDN 2 ABS Perigi has been proven to have completeness after the application of the Numbered Heads Together (NHT) learning model in the 2024/2025 academic year. Keywords: Numbered Head Together, Learning Outcomes. Mathematics