The Missing Piece in Early Childhood ESL Teacher Training: A systematic Review of the Affective-Relational Dimension

Abstract

The global expansion of English language instruction for children aged 3–8 has intensified demand for pedagogical approaches that are both developmentally appropriate and effective. Prevailing models of teacher training for early childhood ESL (EC-ESL) educators, however, remain predominantly focused on linguistic content and methodological technique. This systematic review contends that a critical dimension is systematically overlooked: the affective-relational foundation of young children’s learning. Drawing on literature from three distinct fields, second language acquisition (SLA), early childhood education (ECE), and TESOL teacher education, the analysis reveals a pronounced and problematic gap. While SLA theory has long emphasized the role of affect (e.g., Krashen’s affective filter; MacIntyre et al.’s willingness to communicate) and ECE research robustly positions secure teacher–child relationships as the primary medium for cognitive and social growth, these insights are conspicuously absent or marginalized in the structure and content of mainstream pre-service TESOL/TEFL certifications. This dissonance creates a pedagogical preparedness gap, leaving teachers theoretically informed about child-centered methods but practically unequipped to cultivate the emotional safety and relational connection that enable young learners to engage. The review concludes that for EC-ESL to align with both language acquisition theory and developmental science, teacher training must integrate relational pedagogy not as a supplementary concept, but as a core, assessable competency. This reorientation represents an urgent imperative for curriculum developers and accrediting bodies and establishes a clear agenda for future research and programmed innovation.