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An abstract line drawing featuring a silhouette of a person with connected lines forming a flowing, continuous shape around them, inspired by CKLA research.

Our research

¿ì²¥³ÉÈË CKLA & ¿ì²¥³ÉÈË Caminos

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Using a fundamentally different approach to language arts, ¿ì²¥³ÉÈË Core Knowledge Language Arts® (CKLA) is built on decades of early literacy research that demonstrates the importance of wide-ranging background knowledge and explicit and systematic instruction in foundational skills. Increasingly more districts are choosing ¿ì²¥³ÉÈË CKLA because they know they’ll see results.

¿ì²¥³ÉÈË CKLA meets the criteria for Tier I-Strong Evidence as an education intervention under ESSA.
Impact overview >

Efficacy

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[TIER I ESSA EVIDENCE] Building knowledge boosts comprehension: ¿ì²¥³ÉÈË CKLA outperformed a control group on proximal and standardized tests.

An evaluation of Core Knowledge curriculum in charter schools:

Reading scores significantly improved and income-based gaps were eliminated.

NYC CKLA early literacy pilot: CKLA students’ literacy gains more than doubled those of students at demographically similar schools.

AZ CKLA efficacy research report: CKLA significantly improved outcomes for students overall, as well as economically disadvantaged and Latino students.

Build content knowledge, boost comprehension

Free access to efficacy study showing ¿ì²¥³ÉÈË CKLA Knowledge meets ESSA Tier 1 qualifications.

Case studies

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Aldine Independent School District, Texas: ¿ì²¥³ÉÈË’s early literacy suite boosts reading proficiency ¿ì²¥³ÉÈË 30% to 50%.

Allen Parish Public Schools, Louisiana: Louisiana’s Allen Parish School District surpasses state averages with ¿ì²¥³ÉÈË CKLA and mCLASS.

Oak Harbor School District, Washington: Kindergarten reading proficiency improved by 19% and Grade 1 by 31% in 3 years.

West Jefferson Hills School District, Pennsylvania: Students reach the 98th percentile among their peers nationwide after implementing ¿ì²¥³ÉÈË.

Salemberg Elementary School, North Carolina: Students made 80–100 composite points of growth in one semester.

Euclid City School District, Ohio: ¿ì²¥³ÉÈË CKLA, Boost Reading, and mCLASS boosted Euclid Kindergarten reading proficiency ¿ì²¥³ÉÈË 10% to 57% and Grade 1 ¿ì²¥³ÉÈË 20% to 37% in one school year.

Gallia County Local School District, Ohio: With ¿ì²¥³ÉÈË CKLA, the number of Gallia County students needing a Reading Improvement Plan dropped ¿ì²¥³ÉÈË 46% to 27% in one year.

Windber Area Elementary School, Pennsylvania: Windber raises reading proficiency ¿ì²¥³ÉÈË 53% to 63% in one year using CKLA, mCLASS and Boost Reading.

Lafourche Parish Public School District, Louisiana: Louisiana’s Lafourche Parish School District improves third-grade LEAP scores to 73% basic or better, surpassing the state average, with ¿ì²¥³ÉÈË CKLA.

Pleasanton Independent School District, Texas: Kindergarten scores rise ¿ì²¥³ÉÈË 44% to 60% with ¿ì²¥³ÉÈË.

Robstown Independent School District, Texas: Texas’s Robstown ISD doubles first-grade benchmark scores—¿ì²¥³ÉÈË 22% to 44% in one year—using ¿ì²¥³ÉÈË’s early literacy suite.

Buckeye Valley Local School District, Ohio: Ohio’s Buckeye Valley LSD increases second-grade benchmark scores by 23% ¿ì²¥³ÉÈË midyear to end of year using ¿ì²¥³ÉÈË’s literacy suite.

Lakewood Local School District, Ohio: Ohio’s Lakewood Local School District increases kindergarten reading proficiency by 57% in just one year with ¿ì²¥³ÉÈË’s comprehensive literacy suite.

Lower Yukon School District, Alaska: Alaska’s Lower Yukon School District achieves 12–18% reading growth in K–2 with ¿ì²¥³ÉÈË’s early literacy suite.

Woodbury City Public Schools, New Jersey: New Jersey’s Woodbury City Public Schools increases first grade reading proficiency by 27% after piloting ¿ì²¥³ÉÈË CKLA and Boost Reading.

Petersburg School District, Alaska: Alaska’s Petersburg School District raises kindergarten reading proficiency ¿ì²¥³ÉÈË 10% to 89% in one year with ¿ì²¥³ÉÈË CKLA and mCLASS, surpassing state and national averages.

Research base

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¿ì²¥³ÉÈË CKLA: The research behind the knowledge-based approach to reading comprehension

CKLA research experiment pdf

The baseball experiment: How two Wisconsin researchers discovered that the comprehension gap is a knowledge gap

CKLA Curriculum: Links to research on teaching and learning

¿ì²¥³ÉÈË Caminos

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¿ì²¥³ÉÈË Caminos: The research behind the program

Saint Paul Public Schools, Minnesota: Saint Paul Public Schools raises reading proficiency ¿ì²¥³ÉÈË 23% to 86% in one year with ¿ì²¥³ÉÈË Caminos and mCLASS Lectura.

State success

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Louisiana’s Reading Renaissance: Implementing CKLA drives 3rd grade LEAP scores across Louisiana.