Promoting Inclusive EFL Learning through Differentiated Instruction: A Literature Review

Abstract

Inclusive education demands instructional approaches that accommodate the diverse cognitive, linguistic, and socio-cultural needs of learners. In the context of English as a Foreign Language (EFL), differentiated instruction (DI) has emerged as a pivotal pedagogical framework that enables teachers to tailor content, process, product, and learning environment to meet individual students' needs. Despite growing interest, a comprehensive synthesis of how DI promotes inclusive EFL learning remains limited. This study presents a literature review of 28 peer-reviewed articles published between 2019 and 2026, drawn from major databases including Scopus, ERIC, and Google Scholar. Using thematic synthesis guided by the PRISMA framework, the review identifies four major themes: (1) theoretical foundations of DI in EFL; (2) strategies and implementation practices; (3) effects on learner outcomes, motivation, and engagement; and (4) challenges and barriers to effective DI implementation. Findings reveal that DI consistently enhances student engagement, proficiency gains, and psychological well-being when systematically applied. Meta-analytic evidence confirms large effect sizes on EFL achievement (Hedges’ g = 1.92; pooled MD = 2.92). However, persistent barriers, including time constraints, large class sizes, limited teacher training, and inadequate institutional support, impede widespread adoption. The review concludes with implications for teacher professional development, curriculum policy, and future research on context-sensitive DI frameworks for EFL settings.