<![CDATA[This study aimed to determine the effect of the Problem Based Learning (PBL) model on improving elementary school students' learning interest. Learning interest is one of the important factors influencing students' academic success. However, many students still show low learning interest because classroom activities remain teacher-centered. This research employed a quantitative approach using a quasi-experimental design. The participants were fifth-grade elementary school students divided into experimental and control classes. Data were collected through learning interest questionnaires, observations, and documentation. The findings indicated that the implementation of the PBL model significantly improved students' learning interest compared to conventional teaching methods. Students became more active in discussions, confident in expressing opinions, collaborative in group work, and enthusiastic in solving contextual problems. Therefore, Problem Based Learning is recommended as an effective instructional model to enhance elementary school students' learning interest.]]>
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