The State of the K-12 Supplemental Materials Market: 2024

The State of the K-12 Supplemental Materials Market:2024


Simba has estimated the size of the K-12 instructional supplemental materials market to be $4.62 billion in 2024 and is forecast to grow to $4.98 billion in 2026, representing a CAGR of 2.9% and increase its the share of the total K-12 instructional materials market from 45.04% to 45.18%.

Simba Information’s The State of the K-12 Supplemental Materials Market:2024 uncovers several reasons for the continued increase, including: the vast among to content available through simple internet searches the rise of Open Education Resources (OER) and a shift towards new teaching and learning best practices, such as engagement and inquiry-based learning, which often necessitate supplemental materials.

Simba’s The State of the K-12 Supplemental Materials Market:2024 report also examines: definitions of supplemental material; various types and sources of resources; size of market by key subject areas: science, reading, math, and social studies; teachers’ practices and perspectives when using supplemental resources: when educators seek it; where do they search; and how they search and browse; downsides and drawbacks with supplemental materials, including issues around quality and alignment to standards; problems with virtual resource pools; the role of generative AI, and implications and opportunities for states, school districts, and educational publishers to assist teachers in locating appropriate supplemental materials.

The report provides an analysis of what teachers look for when choosing a supplemental resource based on subject area; the problems with user ratings on unregulated supplementary web sites like Teachers Pay Teachers; and opportunities for educational materials publishers to play a larger role in assisting schools and teachers in choosing supplemental materials.

Simba Information’s The State of the K-12 Supplemental Materials Market:2024 report covers major themes and elements impacting the supplemental materials market, including.:
  • Digital instructional materials
  • Open web resources
  • Open Education Resources (OER)
  • Engagement-based learning
  • Inquiry-based learning
  • NGSS (Next Generation Science Standards)
  • Remote learning
  • Market dynamics
  • Teacher practices
  • Material quality
  • Curriculum alignment
  • Political influences on education
  • AI integration in supplemental materials
  • Virtual resource collections
The State of the K-12 Supplemental Materials Market:2024 report also identified and profiles major educational material publishers and small innovators in the supplemental market. The major businesses profiled include:
  • Boxlight
  • Cengage
  • Discovery Education
  • Houghton Mifflin Harcourt
  • Imagine Learning
  • McGraw Hill
  • Pearson
  • Renaissance Learning
  • Savvas
  • Scholastic
  • Stride Learning Solutions
Publishers and investment professionals can trust Simba Information’s State of K-12 Supplemental Materials Market 2024 to provide the inside intelligence needed to evaluate the growth potential and understand the trends impacting the market for the K-12 supplemental instructional materials market. This report is an essential tool for publishing executives, M&A advisors, market analysts, and industry consultants who need to understand the larger trends and necessary business strategies when considering the supplemental materials instructional market.

About Simba Information

Simba Information is widely recognized as the authoritative source for market intelligence in the education, media, and publishing industries. The company’s extensive information network delivers thoughtful, independent perspectives on the people, events and alliances shaping the industries. In addition, Simba Information assists clients and the press with analysis of educational, publishing and media industry trends.


  • Methodology
  • Executive Summary
  • What Are Supplemental Materials?
    • Background
    • What is "Supplemental Material"?
    • Some Distinctions
    • Why Supplementary Materials Matter - and Why They Matter So Much Today
    • Where do Supplemental Resources Come From?
  • The Supplementary Materials Market: Sales, Spending, and Forecasts
    • Table Total Size & Share of Supplementary Materials Market 2021-2026 (in millions)
    • Looking Forward
      • Looking at the Future- and The Present - What About Generative AI?
      • Off the Shelf AI Enabled Supplemental Materials
  • Teachers' Practices and Perspectives
    • Why and When Teachers Seek Out Supplementary Materials
    • Supplemental Materials in Science and Math
    • Where Do Teachers Search?
    • How Do Teachers Search and Browse for Materials?
      • ELA Instruction
        • Table Most Commonly Selected ELA Resources by Teachers (Beyond Curriculum) Top 10
      • Mathematics Instruction
        • Table Most Commonly Selected Math Resources by Teachers (Beyond Curriculum) Top 10
      • Science Instruction
        • Table Most Commonly Selected ELA Science Resource by Teachers (Beyond Curriculum) Top 10
    • Establishing Criteria for a Quality/Desirable Source
      • Table Criteria for Selecting Supplemental Reading Resources
      • Table Most Important Criteria in Selecting Supplemental Social Studies Materials % Response
    • After Selection
  • Downsides and Drawbacks with Supplementary Materials
    • The Research
      • Strengths
      • Weaknesses
    • Causes of the Weaknesses
      • Ineffective Resource Rating Methods
      • Incorrect or misleading resource descriptions
      • Poor Google Search Capabilities
      • Time Stresses
      • Other Reasons Teachers Not Using High Quality Supplementary Materials
      • Other Approaches for Addressing Quality Shortfalls
    • The Role of States
      • STATE OF NEW MEXICO
  • Implications and Opportunities
    • State and School District Guidance
    • The Role of Educational Publishers
    • Potential Problems with Standards and Guidance
  • Company Profiles
    • Major Players
    • Major Players
      • Boxlight
      • Cengage
      • Discovery Education
      • Houghton Mifflin Harcourt
      • Imagine Learning
      • McGraw Hill
      • Nerdy
      • Renaissance Learning
      • Savvas
      • Stride Learning Solutions
      • Scholastic
    • Selected Other Publishers
      • Accelerate Learning (STEMscopes)
      • Amazon Ignite
      • Amplify
      • Big Universe
      • BrainPOP
      • Carnegie Learning (Zorbit's Math)
      • Desmos
      • Edgenuity
      • ExploreLearning
      • Follett (Follett Classroom Libraries)
      • Khan Academy
      • Kahoot!
      • Lexia Learning
      • Newsela
      • Reconstructure US
      • RethinkEd
      • Rosetta Stone
      • Square Panda (SquareTales)
      • XanEdu
  • State Guidance for School Districts
    • Alabama
    • Colorado
    • Delaware
    • Kentucky
    • Louisiana
    • Maryland
    • Massachusetts
    • Mississippi
    • Nebraska
    • Ohio
    • Oklahoma
    • Rhode Island
    • Tennessee
    • Texas

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