Appendix A of the Common Core State Standards (hereafter CCSS) contains a review of the research stressing the importance of being able to read complex text for success in college and career. The research shows that while the complexity of reading demands for college, career, and citizenship have held steady or risen over the past half century,…

Describes the Lexile Framework(R), which enables teachers to develop personalized instruction based on Lexile measures of reading ability and Lexiled reading lists. The Lexile Framework is based on the entire book, with individual reading ability measured by tests that measure on the same scale on which the books are measured. As an open standard,…