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
Advancing Comprehensive English Language Development: Designing System Coherence for Content-Based English Language Development is the second in a four-part implementation series focused on advancing high-quality English language development (ELD) systems. Drawing on research on educational change, organizational coherence, and instructional improvement, the brief recognizes that while effective classroom practices are essential, their impact depends on the organizational conditions that support consistent implementation. This brief examines the “how” of implementation by emphasizing system coherence—the intentional alignment of policies, leadership, organizational structures, and resources around a shared vision for language and content learning. It introduces seven foundational practices that support the coherent implementation of content-based ELD at scale, including leadership alignment, instructional guidance, professional learning, and continuous improvement. Illustrative “Bright Spots” from state, district, and school systems across the country demonstrate how educational organizations are translating policy and research into coherent implementation strategies. By synthesizing evidence-based practices, field examples, and actionable implementation resources, the brief provides education leaders with a framework for aligning initiatives, strengthening organizational capacity, and creating the conditions necessary to implement evidence-based content-based ELD consistently across classrooms.
Implementation Brief 2 Classroom Spotlights
Implementation Brief 2 EL State Policy Brightspots
Implementation Brief 2 District Brightspots
Implementation Brief 2 Actionable Foundational Practices Tool
Coming August 2026
Coming September 2026