NCLC Literacy & Science of Reading Resource Hub

Download Parent Guide
Download Classrooom Guide

“The Science of Reading isn’t a trend — it’s the evidence-based path to addressing our nation’s reading crisis and ensuring every child learns with methods proven to work.”

— Adapted from themes in Burns, M. K. & Ysseldyke, J. (2005); Burns et al. (2017) on evidence-based practice & implementation

Science of Reading (SOR) FAQs

Additional Research-based Resources and References

What is the Science of Reading (SOR)?

The Science of Reading refers to a large, interdisciplinary body of research—spanning cognitive psychology, neuroscience, linguistics, education, and developmental psychology—examining how children learn to read and how skilled reading develops.

SOR is not a program. It is a convergence of evidence built over 50+ years and synthesized in hundreds of studies and meta-analyses.

What are the major components of SOR?

Science of Reading (SOR) supports five essential, interdependent components:

  1. Phonological Awareness

  2. Phonics / Decoding / Alphabetic Principle

  3. Fluency

  4. Vocabulary & Language Development

  5. Comprehension

This aligns with the NRP (2000) report and subsequent WWC practice guides.

Is SOR the same as “balanced literacy”?

No.
Balanced literacy is an approach or philosophy, whereas SOR is a research base.
SOR overwhelmingly supports explicit, systematic instruction in foundational skills—especially phonics—whereas balanced literacy models often rely on implicit or discovery-based word solving (e.g., cueing).

Why does “systematic and explicit instruction” matter?

Explicit instruction = clear, direct teaching of skills
Systematic instruction = skills taught in a planned, logical sequence

Research shows that children—especially those at risk for reading difficulties—learn to read best when foundational skills are taught explicitly and systematically, rather than relying on inference, discovery, or picture cues.

What about multilingual learners—does SOR apply?

Yes.
SOR applies broadly, but instruction must consider:

  • Learner’s language background

  • Transfer of linguistic features from L1 → L2

  • Explicit vocabulary, morphology, and syntax instruction

Research affirms phonics benefits multilingual learners when integrated with oral language scaffolds.

Which students struggle most when instruction is not aligned to reading research?

Students who are:

  • low-income

  • multilingual learners

  • students with dyslexia

  • historically underserved groups

SOR-aligned instruction is an equity strategy that everyone can support.

How is MTSS connected to the Science of Reading (SOR)?

MTSS provides the system to implement evidence-based reading instruction:

  • Tier 1: high-quality, SOR-aligned core

  • Tier 2: targeted small-group intervention

  • Tier 3: intensive, individualized support

“The science of reading is not new—but our commitment to implementing it consistently must be renewed.”

— International Literacy Association

Understanding the Difference.

Science of Reading (SOR)

  • Based on 50+ years of interdisciplinary research

  • Explicit, systematic phonics

  • Decoding as primary strategy

  • Teaches PA → Phonics → Fluency → Comprehension

  • Decodable texts early

  • High teacher knowledge required

  • Supported by WWC, NICHD, NRC

Balanced Literacy

  • Based on philosophy & teacher interpretation

  • Phonics embedded or optional

  • Cueing strategies (MSV)

  • Emphasis on meaning-making first

  • Predictable/leveled texts early

  • High teacher autonomy required

  • Not supported in decoding research

  • National Reading Panel (2000).
    A landmark review of research identifying the five critical components of reading:
    phonological awareness, phonics, fluency, vocabulary, and comprehension.
    This remains one of the strongest consensus documents in literacy research.

    Snow, Burns, & Griffin (1998), National Research Council.
    Preventing Reading Difficulties in Young Children.
    Defines essential early literacy practices and the importance of early intervention.

    Seidenberg, M. (2017). Language at the Speed of Sight.
    Explains the cognitive science behind reading, why many children struggle, and what must change in instruction.

    Dehaene, S. (2009). Reading in the Brain.
    Neuroscience explaining how the brain rewires itself to read; strongly supports explicit phonics-based instruction.

  • Ehri, L. (2005, 2014).
    Orthographic mapping theory explaining how children store and retrieve words efficiently.
    Foundational for understanding why phonics is essential.

    Scarborough, H. (2001).
    The Reading Rope — illustrates how word recognition and language comprehension intertwine to produce skilled reading.

    Castles, Rastle, & Nation (2018).
    “Ending the Reading Wars.”
    A modern, highly cited synthesis confirming the evidence for systematic decoding instruction and rich language comprehension.

  • Archer & Hughes (2011). Explicit Instruction.
    A clear guide to the teaching principles supported across reading research.

    Foorman et al. (2016).
    IES Practice Guide on foundational reading skills.
    Provides actionable strategies aligned to the NRP findings.

  • August & Shanahan (2006).
    National Literacy Panel report on effective instruction for language-minority learners.

    Genesee et al. (2006).
    Comprehensive research on bilingual education and literacy acquisition.

    Goldenberg (2008).
    Clarifies what the research supports (and does not support) for English learners.

  • Kilpatrick, D. (2015).
    Explains why cueing systems conflict with how the brain learns to read; emphasizes phonemic awareness and word-level instruction.

    IES & WWC practice guides.
    Federal guidance consistently discouraging use of cueing for decoding.

  • Torgesen et al. (2001).
    Demonstrates that intensive, explicit intervention can dramatically improve outcomes for students with severe reading difficulties.

    Simmons et al. (2000).
    Research on early intervention showing rapid gains when instruction is aligned with reading science.

    NCII (National Center on Intensive Intervention).
    DBI (Data-Based Individualization) framework — gold standard for Tier 3 intervention.

    Vaughn & Wanzek (2014).
    Defines characteristics of effective intensive interventions.

  • Moats, L. (1999; 2020). Teaching Reading Is Rocket Science.
    Explains why teacher knowledge matters more than any program and outlines essential knowledge for all reading educators.

    Lyon, G. (2000).
    NICHD testimony highlighting the preventability of reading failure and the need for research-aligned instruction.

    Piasta et al. (2009).
    Shows strong connections between teacher knowledge of reading concepts and student reading achievement.

  • Fletcher & Vaughn (2012).
    Shows MTSS/RTI approaches are most beneficial for students who have historically struggled.

    Snow (2018).
    Argues that reading outcomes improve when instruction aligns to research and when systemic inequities are addressed.

Read the Research.

These foundational studies, reports, and books represent the most influential and widely cited research on how children learn to read and which instructional approaches improve outcomes for all learners.

Learn more