This study aims to evaluate the effectiveness of the Polya approach in enhancing mathematical problem-solving skills among fourth-grade elementary students, particularly in the topic of plane figures. The research employed a quantitative descriptive method involving all 28 students of grade 4 at SDN 3 Sindangkasih using a saturated sampling technique. The main instrument was a written test consisting of three open-ended questions designed according to Polya's stages: understanding the problem, devising a plan, carrying out the plan, and reviewing the solution. The results revealed that 75% of students successfully solved problems with lower complexity, while all students failed on higher-complexity questions requiring analysis and spatial visualization. The main obstacles were found in the initial stage of understanding the problem and in students' weak mastery of basic concepts and spatial visualization. The study recommends systematic implementation of the Polya approach, use of concrete media, and intensive scaffolding to optimize mathematics learning in elementary schools.
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