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Raz-Kids and Text Complexity
Raz-Kids and Text Complexity
Updated over a week ago

Raz-Kids, an award-winning teaching product, supports teachers with choosing high-quality, appropriately complex texts for students, utilizing a three-part model that considers quantitative measures, qualitative measures, and the reader and task. Let’s delve into the details:

  1. Quantitative Measures:
    These are the aspects of a text such as sentence length, word length, word frequency, and repetition that are best measured by computer software. Learning A-Z utilizes the Lexile Framework for Reading*, developed by MetaMetrics, Inc., for quantitative measurement of texts in English and Spanish.

  2. Qualitative Measures:
    These are text attributes that are best evaluated by a human reader, including factors such as the author's purpose, the levels of meaning, structure of the text, language conventions, language clarity, knowledge demands, and the complexity and importance of visual devices. At Learning A-Z, multiple trained subject matter experts apply their professional judgment to evaluate the complexity of each text, which is represented as a Learning A-Z Level, aa–Z2.

  3. Reader and Task Considerations:
    Each reader brings unique skills, background, and motivation to the act of reading. Teachers should evaluate reader and task considerations, which depend on the circumstances of each student and their interaction with a specific book. Using the combination of Lexile Measures and qualitative measures, teachers can make informed decisions about appropriate texts for the reader and task.

Explore more details about Evaluating Text Complexity.


* Lexile® Measures for texts are certified through a partnership with MetaMetrics®.

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