Leveled Literacy Intervention

Leveled Literacy Intervention is a rigorous, small-group, supplementary literacy intervention for students who find reading and writing difficult and need intensive teaching to achieve grade-level competency. It serves as an important prevention for literacy difficulties in subsequent years of schooling.


LLI gives students the boost they need to become proficient readers and achieve literacy success.

They are designed to:

  • Advance the literacy learning of students not meeting grade-level expectations in reading
  • Deepen and expand comprehension with close reading
  • Elevate the expertise of teachers
  • Increase reading volume by engaging students in large amounts of successful daily reading
  • Increase student engagement with books that build knowledge
  • Intervene with small groups of struggling readers to maximize growth
  • Meet the needs of struggling readers
  • Monitor student progress.

Instill a love of reading with original LLI books.

At the heart of LLI are high-quality leveled books that captivate and engage even the most reluctant readers. The books are precisely sequenced and calibrated to provide gradually increasing text complexity to build proficiency. Student learning takes place with the foundational support of these engaging books.

Special features of the LLI books:

  • Primary: 40% nonfiction, 60% fiction
  • Intermediate: 60% nonfiction, 40% fiction, including graphic texts and two-way books
  • Nonfiction text features such as sidebars, graphs, diagrams, maps, glossaries
  • Highly visual with a mix of illustrated and photographic titles
  • Developed around high-interest, contemporary topics
  • Wide variety of genres, including biography, narrative nonfiction, expository nonfiction, realistic fiction, historical fiction, and fantasy
  • Series books, including classic tales, in which students meet recurring characters and topics

Independent Empirical Studies Confirm Effectiveness of LLI

The Centre for Research in Educational Policy (CREP) at the University of Memphis conducted scientific studies that assessed the efficacy of LLI and confirmed that is it effective in significantly improving the literacy achievement of struggling readers and writers in K-2.

Explore LLI Research

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