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Pearson Adds Text Complexity Measure to WriteToLearn

Posted Jan 17, 2013
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Pearson has announced that WriteToLearn now includes Pearson's text complexity measure, the Reading Maturity Metric (RMM), offering 30 percent improvement over previous readability formulas. RMM has been added to the nearly 1,000 informational reading passages, along with Common Core State Standards' text complexity grade bands. This additional information is now available to teachers to help them select the most appropriate readings for their students using Common Core criteria.

One of the key requirements of the Common Core State Standards for English Language Arts is that students comprehend texts of steadily increasing complexity as they progress through school. In response to the Common Core requirement for a more accurate measure of text complexity than offered by standard readability formulas, Pearson's Knowledge Technologies researchers developed RMM based on empirically derived growth in individual word meanings.

With WriteToLearn, students build the literacy skills outlined in the new Common Core State Standards by practicing essay writing and summarization skills, and their efforts are measured by Pearson's Knowledge Analysis Technologies (KAT) engine. WriteToLearn places strong emphasis on the comprehension and analysis of the types of informational texts detailed in the new standards. With this release, WriteToLearn also adds writing prompts specifically targeted at the informational and argumentative skills required by the Common Core.

WriteToLearn qualifies for federal funding under the American Recovery and Reinvestment Act. For more information, visit To learn more about the Reading Maturity Metric, visit

Source: Pearson,

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