<![CDATA[This study was motivated by students’ low mathematical conceptual understanding of solid geometry and learning that has not optimally connected mathematical concepts with real-life contexts and local wisdom. This study aimed to analyze the implementation of a Deep Learning instructional approach integrated with Javanese local wisdom in improving students’ mathematical conceptual understanding and to examine students’ responses to the learning process. The study employed a quantitative approach with a quasi-experimental method and a pretest-posttest control group design. It was conducted at SMP Negeri 1 Pegajahan with sampling 63 students, consisting of 31 students in the experimental group and 32 students in the control group. Data were collected through a mathematical conceptual understanding test and a student response questionnaire and analyzed using normality, homogeneity, independent sample t-test, and N-Gain analyses. The results showed that the experimental group achieved a higher mean posttest score (87.74) than the control group (78.97). The t-test yielded a significance value of 0.000 < 0.05. The N-Gain score was 0.8021 (high) for the experimental group and 0.6495 (moderate) for the control group. Student responses reached 87%, categorized as very positive. Thus, the Deep Learning approach integrated with Javanese local wisdom effectively improves students’ mathematical conceptual understanding.]]>
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