This research aims to determine the effect of implementing the Discovery Learning learning model on students' problem solving abilities in class IV science and science subjects at SD Inpres Samata, Gowa Regency. This type of research is quasi-experimental research with a nonequivalent control group design. The research subjects consisted of two classes, namely the experimental class and the control class, each with 27 students, so the total sample was 54 students. The sampling technique uses total sampling. Data collection techniques are carried out through tests, observation and documentation. The instruments used were problem solving ability tests and observation sheets. Data analysis techniques include descriptive statistical analysis and inferential statistics through normality tests, homogeneity tests, and Independent Sample T-Test. The results of the research show that the average pretest score in the experimental class is 50.89 and the control class is 51.70 which is in the low category. After being given treatment, the average posttest score for the experimental class increased to 77.78, while the control class became 73.67. The results of the hypothesis test show a significance value of 0.004 which is smaller than 0.05, so that H₀ is rejected and H₁ is accepted. Thus, it can be concluded that the application of the Discovery Learning learning model has a significant effect on students' problem solving abilities in class IV science and science subjects at SD Inpres Samata, Gowa Regency.
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