Scientific literacy among Indonesian elementary school students remains low, as reflected in the country's below-average science score in the 2022 PISA assessment, partly because instruction is often decontextualized and does not link scientific concepts to students' local cultural contexts. Local wisdom-based deep learning offers a way to meet this need by developing scientific literacy and cultural literacy together. This study examined its effect on (1) scientific literacy, (2) cultural literacy, and (3) both literacies simultaneously. A quasi-experimental pretest-posttest control group design was employed, involving 66 fifth-grade students from a state elementary school in Rangkasbitung District, Lebak Regency, Banten Province: 33 students in an experimental group taught through local wisdom-based deep learning using Problem Based Learning, and 33 students in a control group taught conventionally. Data were analyzed using the Independent Sample T-Test and Multivariate Analysis of Variance (MANOVA) after the assumptions of normality and homogeneity were tested. The results showed a significant effect of local wisdom-based deep learning on scientific literacy, on cultural literacy, and on both literacies combined. These findings indicate that integrating local wisdom into deep learning can strengthen scientific and cultural literacy in an interdependent manner in elementary education.
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