THE EFFECT OF NUMBERED HEAD TOGETHER COOPERATIVE LEARNING MODEL ON STUDENTS' MATHEMATICAL PROBLEM SOLVING ABILITY
Abstract
This study aims to find out whether the Numbered Head Together (NHT) type cooperative learning model has an effect on students' mathematical problem-solving ability at SMP Negeri 5 Jambi City. This research was conducted at SMP Negeri 5 Jambi City for the 2023/2024 school year. This type of research is quantitative research. This study is an experimental research with a Posttest-Only Control Design. The population is all grade VIII students of SMP Negeri 5 Jambi City. Sample withdrawal was carried out using the Cluster Random Sampling technique. The researcher randomly took two selected classes, class VIII B as the experimental class and class VIII C as the control class. The instrument used is a final test in the form of essay questions to see students' mathematical problem-solving skills. The test data was analyzed using a one-party t-test, namely the right-hand test assisted by SPSS version 29.0. The results showed that the average score of mathematical problem-solving ability of students in the experimental class was 63.33 and the average score of mathematical problem-solving students in the control class was 41.44. Meanwhile, based on the results of the analysis of the independent sample t-test with a significant level of 5% (α = 0.05), a significant value (1-talled) of 0.0005 was obtained, so it can be seen that 0.0005 < 0.05. Based on the results of this study, it can be concluded that the Numbered Head Together (NHT) type cooperative learning model has an effect on students' mathematical problem-solving ability.
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