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Understanding Lexiles

About Lexile Measures for Reading

The Lexile Framework for Reading is a scientific approach that places both the reader and text on the same developmental scale, making it easy to connect with books targeted to your reading ability.

Two Measures - One for the Reader, One for the Book
You receive a Lexile reading measure from a STAR test at school or a state milestone. A Lexile reading measure can range from below 0L for early readers to above 2000L for advanced readers. Readers who score below 0L receive a BR for Beginning Reader. If you don’t know your Lexile reader measure, ask your teacher.

More than 100 million books, articles and websites have received Lexile text measures. Materials receive Lexile text measures based on things like their vocabulary and complexity. For example, the first Harry Potter book measures 880L, so it has a Lexile text measure of 880L.

You can use your Lexile measure to engage in reading materials that advance your reading skills, or, for advanced readers, find materials that offer more challenge but are also age-appropriate.

Reading Comprehension Sweet Spot
Students and parents should look for reading materials with a reading comprehension “sweet spot” of 100L below to 50L above the student Lexile measure. Reading materials in this range will provide an ideal level of challenge while maintaining comprehension.

So if you're Lexile is 750L, you want to look for books that are 650L - 800L.

You can find books in your Lexile range with the Find A Book tool, or by searching in Destiny.