This study aimed to determine the effect of using flash card media on students' learning outcomes in the topic of Natural and Artificial Features for third-grade students at SD Negeri 105367 Sei Jenggi. This study employed a quantitative approach using a Quasi-Experimental Design with a Nonequivalent Control Group Design. The sample consisted of 36 students, comprising 18 students from Class III A as the experimental class and 18 students from Class III B as the control class at SD Negeri 105367 Sei Jenggi. Data were collected through observation, documentation, and multiple-choice tests. The data were analyzed using validity, reliability, item difficulty, discrimination index, normality, homogeneity, and hypothesis testing through the Independent Samples t-test with the assistance of SPSS software. The results showed that the use of flash card media had a significant effect on the science and social studies (IPAS) learning outcomes of third-grade students at SD Negeri 105367 Sei Jenggi. This was evidenced by the Independent Samples t-test, which produced a significance value (Sig. 2-tailed) of 0.017 < 0.05, indicating that H₀ was rejected and Hₐ was accepted. Therefore, the use of flash card media had a positive effect on students' learning outcomes in the topic of Natural and Artificial Features for third-grade students at SD Negeri 105367 Sei Jenggi.
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