Twenty-first-century education requires students to develop creative thinking skills and achieve strong learning outcomes to meet the challenges of rapid advances in science and technology. However, numerous studies indicate that classroom instruction is still largely dominated by conventional teaching methods, limiting the development of students' creative thinking skills. This study aims to analyze the effectiveness of implementing the Project-Based Learning (PjBL) model in improving senior high school students' learning outcomes and creative thinking skills. This study employed a literature review method by examining nine SINTA-accredited research articles published between 2022 and 2026, retrieved through Google Scholar based on predetermined inclusion and exclusion criteria. The data were analyzed descriptively through the processes of identification, selection, classification, and synthesis of the research findings. The results indicate that the implementation of Project-Based Learning consistently improves students' learning outcomes and enhances creative thinking skills in terms of fluency, flexibility, originality, and elaboration. Furthermore, PjBL promotes learning motivation, collaboration, self-regulation, scientific literacy, and problem-solving skills. Therefore, the Project-Based Learning model can be considered an effective and innovative instructional approach to support the implementation of twenty-first-century learning in senior high schools.
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