Implementation Brief Series
The Center on English Language Proficiency’s (ELP) 2026 Implementation Brief Series highlights evidence-based practices that support the design, implementation, and systemic coherence of Comprehensive English Language Development (ELD). The series is designed to help Regional Content Centers, state education agencies (SEAs), and local education agencies (LEAs) translate research into actionable guidance that strengthens instructional systems and improves outcomes for English Learners (ELs).
The series brings together the core components of Comprehensive ELD across both content-based and designated ELD. Briefs 1 and 2 focus on classroom practices and systemic coherence for content-based ELD, while Briefs 3 and 4 focus on classroom practices and systemic coherence for designated ELD.
Advancing Comprehensive English Language Development: Content-Based Instruction Through Evidence-Based Practices is the first in a four-part series assisting educational agencies in implementing high-quality, comprehensive English Language Development (ELD) systems. This brief bridges the gap between research and practice by illustrating what implementation looks like for evidence-based practices for content-based ELD curriculum, instruction, and assessment. It introduces a framework of foundational practices—understanding students’ backgrounds and aligning instruction to standards—alongside four critical domains: Rigorous and Relevant Curriculum, Interactions, Comprehensibility, and Connections. Finally, the brief outlines the leadership and collaborative systems necessary to sustain these practices and improve long-term outcomes for English Learners.
Implementation Brief 1 Classroom Snapshots
Coming July 2026
This brief focuses on the systems, structures, and instructional conditions that support coherent implementation of content-based ELD across state, district, school, and classroom contexts.
Coming August 2026
Coming September 2026