Advancing SDG 4 through Outdoor Study-Based Problem Learning: Effects on Elementary Students' Conceptual Understanding and Learning Independence

Achieving Sustainable Development Goal 4 (SDG 4) requires elementary science instruction that develops not only conceptual understanding but also students’ learning independence. However, previous studies have predominantly examined Outdoor Study and Problem-Based Learning as separate instructional approaches, leaving limited empirical evidence on their integrated application in elementary science education. This study aimed to examine the effectiveness of integrating Outdoor Study with Problem-Based Learning in supporting conceptual understanding and learning independence. A quasi-experimental pretest–posttest control group design was conducted at SD Negeri 3 Nglengkir (n = 19) and SD Negeri 2 Nglengkir (n = 17), Blora Regency, Indonesia. Data were collected using a conceptual understanding test and a learning independence questionnaire, analyzed using paired-samples t-tests, independent-samples t-tests, and MANOVA. The experimental group demonstrated significantly higher conceptual understanding and learning independence scores than the control group (p < .001). MANOVA also revealed a significant simultaneous difference between groups, Wilks' Λ = .241, F(2; 33) = 52.061, p < .001, partial η² = .759. These findings indicate that the integration of Outdoor Study and Problem-Based Learning offers a promising approach for strengthening science learning outcomes and learner autonomy. The study contributes empirical evidence for competency-oriented elementary science instruction aligned with SDG 4.