91ºÚÁÏÍø

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

91ºÚÁÏÍøCKLA & 91ºÚÁÏÍøCaminos

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Using a fundamentally different approach to language arts, 91ºÚÁÏÍøCore 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 91ºÚÁÏÍøCKLA because they know they’ll see results.

91ºÚÁÏÍøCKLA 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: 91ºÚÁÏÍøCKLA 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 91ºÚÁÏÍøCKLA Knowledge meets ESSA Tier 1 qualifications.

Case studies

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Aldine Independent School District, Texas: Amplify’s early literacy suite boosts reading proficiency from 30% to 50%.

Allen Parish Public Schools, Louisiana: Louisiana’s Allen Parish School District surpasses state averages with 91ºÚÁÏÍøCKLA 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 Amplify.

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

Euclid City School District, Ohio: 91ºÚÁÏÍøCKLA, Boost Reading, and mCLASS boosted Euclid Kindergarten reading proficiency from 10% to 57% and Grade 1 from 20% to 37% in one school year.

Gallia County Local School District, Ohio: With 91ºÚÁÏÍøCKLA, the number of Gallia County students needing a Reading Improvement Plan dropped from 46% to 27% in one year.

Windber Area Elementary School, Pennsylvania: Windber raises reading proficiency from 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 91ºÚÁÏÍøCKLA.

Pleasanton Independent School District, Texas: Kindergarten scores rise from 44% to 60% with Amplify.

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

Buckeye Valley Local School District, Ohio: Ohio’s Buckeye Valley LSD increases second-grade benchmark scores by 23% from midyear to end of year using Amplify’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 Amplify’s comprehensive literacy suite.

Lower Yukon School District, Alaska: Alaska’s Lower Yukon School District achieves 12–18% reading growth in K–2 with Amplify’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 91ºÚÁÏÍøCKLA and Boost Reading.

Petersburg School District, Alaska: Alaska’s Petersburg School District raises kindergarten reading proficiency from 10% to 89% in one year with 91ºÚÁÏÍøCKLA and mCLASS, surpassing state and national averages.

Research base

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91ºÚÁÏÍøCKLA: 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

91ºÚÁÏÍøCaminos

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91ºÚÁÏÍøCaminos: The research behind the program

Saint Paul Public Schools, Minnesota: Saint Paul Public Schools raises reading proficiency from 23% to 86% in one year with 91ºÚÁÏÍøCaminos and mCLASS Lectura.

State success

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