Bring the world to students with a proven PreK–5 literacy curriculum

ѨƵCore Knowledge Language Arts (CKLA) is the leading early literacy curriculum grounded in the Science of Reading. By combining knowledge-building and research-based foundational skills, our instruction guides educators in developing strong readers, writers, and thinkers.

With a powerful online platform and a parallel Spanish language arts curriculum, ѨƵCKLA provides a comprehensive solution for PreK–5 educators and students. Para la versión en español, haga clic í.

Background knowledge drives results

The ѨƵCKLA PreK–5 literacy curriculum equips students with rich knowledge that intentionally builds to inspire curiosity and drive results. Explore research revealing the power of our knowledge-based curriculum including a study that meets qualifications for ESSA Tier I: Strong Evidence.

ѨƵCKLA serves

ѨƵCKLA serves






U.S. States and D.C.

Independently and rigorously reviewed

ѨƵCKLA is among the few curricula that is both recognized by the Knowledge Matters Campaign—for its excellence in intentionally building knowledge—and rated all-green on EdReports, earning green scores across all gateways.

Our approach

Grounded in the Science of Reading and following the Core Knowledge approach, the ѨƵCKLA PreK–5 curriculum combines rich, diverse content knowledge in history, science, literature, and the arts with systematic, research-based foundational skills instruction.

Grounded in the Science of Reading

As the first publisher to build a curriculum based on the Science of Reading, we put research into action with explicit systematic foundational skills instruction alongside a proven knowledge-building sequence. In collaboration with education experts and practitioners, we provide powerful resources that drive real results. Explore our Science of Reading success stories.

Developing foundational skills with explicit, systematic instruction

ѨƵCKLA’s research-based scope and sequence progresses from simple to more complex skill development, starting with phonological and phonemic awareness. Instruction guides you in explicitly teaching the 150 spellings for the 44 sounds of English, with an intentional progression and review of skills to set your students up for success.

Following a proven knowledge-building approach

Following the Core Knowledge Sequence–a content-specific, cumulative, and coherent approach to building knowledge–students dig deeper and make connections across content areas to build a robust knowledge base for comprehending complex texts. See how the Core Knowledge curriculum is proven to improve reading scores and eliminate achievement gaps.


Built in partnership with the Core Knowledge Foundation

ѨƵCKLA is the premier high-quality instructional materials offering for elementary language arts, built in partnership with the Core Knowledge Foundation to help students effectively develop deep content knowledge and foundational skills.

Learn more about the Core Knowledge Foundation

Cultivating biliteracy with parallel English and Spanish programs

ѨƵCaminos is the perfect Spanish language arts partner to ѨƵCKLA. The aligned programs combine rich content knowledge with systematic foundational skills instruction grounded in the Science of Reading that follows biliteracy principles, and supports multiple teaching models.

Learn more about ѨƵCaminos >

ѨƵCKLA efficacy study

Tier I ESSA Evidence: ѨƵCKLA knowledge-building improves achievement.

What's included

The program provides engaging print and multimedia materials designed to build a robust literacy-rich foundation in every classroom.

Core ELD and companions
ѨƵCKLA Skills 6 Teacher Guide
Shakespeare's A Midsummer Night's Dream Activity Book
ѨƵCKLA Resources page
Grade 6 Unit 4 Eureka! Teacher Guide
ѨƵCKLA Skills 1 Teacher Guide

High-quality teacher materials

ѨƵCKLA teachers effectively deliver instruction with print and digital resources, including:

  • Teacher Guides with embedded differentiation.
  • Formal and informal assessments.
  • Ready-made and customizable lesson slides.
  • Trade books and Novel Guides.
  • Teacher resources and on-demand professional development.

Immersive student resources

ѨƵCKLA students stay engaged with a variety of print and digital resources, including:

  • Original decodables and read-aloud Big Books (K–2), Student Readers (3–5), and trade books (–5).
  • Student Activity Books with embedded assessments (–5).
  • Research units for independent research built around a trade book (–5).
  • Poet’s Journal and Writer’s Journal (write-in student readers for Grades 4–5).
  • to support immersive, problem-based learning in Grades 3–5.
A student reading aloud
A speech bubble with the phrase,

Hands-on phonics materials

Multisensory phonics and foundational skills resources help students practice key skills using fun, varied approaches that build independence.

  • Chaining Folder (K)
  • Letter Cards (K–2)
  • Syllable Cards (K–2)
  • Image Cards (K–3)
  • Blending Picture Cards (K)
  • Consonant and Vowel Code Flip Books (1–2)
  • Exclusive digital Sound Library

Robust digital experience

ѨƵCKLA teacher and student resources are available through a digital experience platform that enhances instruction and saves you time. With everything you need in one place, you can effectively plan lessons, present content, and review student work.

  • Ready-made yet customizable lesson presentation slide decks
  • Dynamic live-review student tool
  • Interactive and student-friendly experience
  • LMS integration
  • Knowledge Builder animated videos
  • Recorded Read-Alouds
  • Professional development website
  • Real-time program support via email, live chat, and phone

Explore more programs based on the Science of Reading

All of the programs in our literacy suite are designed to support and complement each other. Learn more about our related programs: