Matshidiso Mirriam Moleko

Introduction Universal Design for Learning (UDL) has emerged as a prominent framework for promoting inclusive education by addressing learner variability through flexible curriculum design, instruction, and assessment. Although interest in UDL has expanded globally, evidence regarding its implementation in primary mathematics education remains fragmented across diverse educational contexts. This systematic review synthesized empirical evidence on UDL implementation in primary mathematics education and developed an evidence-informed integrative framework to guide research and practice. Methods The review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA 2020) guidelines. Searches conducted in Scopus and Web of Science identified 168 records, from which 14 studies met the inclusion criteria. Methodological quality was assessed using the Mixed Methods Appraisal Tool (MMAT, Version 2018), and data were synthesized through thematic analysis. Results Three substantive themes emerged: instructional practices supporting UDL implementation, educational outcomes associated with UDL implementation, and contextual challenges and enabling factors. The findings revealed that effective UDL implementation was characterized by differentiated instruction, multiple means of representation, engagement, and action and expression, supported by accessible learning resources and digital technologies. These practices were associated with improved mathematics achievement, conceptual understanding, learner engagement, participation, and accessibility. However, successful implementation depended on sustained teacher professional development, institutional support, and equitable access to instructional resources. Discussion The review informed the development of an evidence-informed integrative framework that contextualizes UDL implementation within primary mathematics education. By linking enabling conditions, instructional practices, contextual influences, and learner outcomes, the framework extends existing UDL applications and offers a comprehensive model for advancing inclusive mathematics education. The findings underscore the importance of systemic support structures in ensuring effective and sustainable UDL implementation.