<![CDATA[This research aims to determine of Project Based Learning (PjBL) model implementation and school facilities on science learning outcomes of Phase B and C students at SDN Kalirejo II Dringu. The low science learning outcomes were caused by conventional learning approaches and limited school facilities that had not been optimally utilized.The research employed a quantitative approach with an explanatory model. The research population consisted of all Phase B students (grades III and IV) and Phase C students (grades V and VI), totaling 65 students, using saturated sampling technique. Data collection was conducted through questionnaires, observations, interviews, and documentation. Data analysis used multiple linear regression tests with SPSS 27, including normality tests, linearity tests, F-test (simultaneous), and t-test (partial).The research findings indicate: (1) There is a positive and significant influence of PjBL model implementation on science learning outcomes with a coefficient of determination R² = 0.917 (91.7%) and F(1,63) = 692.86, p < 0.001; (2) There is a positive and significant influence of school facilities on science learning outcomes with R² = 0.785 (78.5%) and F(1,63) = 229.92, p < 0.001; (3) Simultaneously, the implementation of PjBL model and school facilities have a highly significant influence on science learning outcomes with R² = 0.920 (92%) and F(2,62) = 355.99, p < 0.001.The conclusion of this research confirms that improvement in science learning outcomes can be achieved through a combination of project-based learning model implementation supported by adequate school facilities. The research recommends that teachers consistently implement PjBL, schools improve the quality of learning facilities, and conduct regular monitoring to ensure the effectiveness of project-based learning.]]>
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