Integrative and Contextual Instructional Models for Strengthening Scientific Literacy in Primary and Secondary Education (2020–2025): A Systematic Literature and Bibliometric Review

Improving students’ science literacy remains a persistent challenge in schools. Although studies since 2020 examine strategies to enhance science literacy, no synthesis has compared integrative models across levels. This review addresses that gap through a PRISMA-based Systematic Literature Review of 1,518 records, with 24 studies included and supported by VOSviewer mapping. Findings show that Problem-Based Learning, STEM-based learning, and the RADEC model are the most effective approaches, while Differentiated Instruction, Flipped Classroom, and Project-Based Learning strengthen reasoning and scientific attitudes. These results offer guidance for classroom implementation and inform policy on teacher training and curriculum design within the Merdeka Curriculum.