CK12.ORG - FlexBooks - 0 views
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Manuel Gertrudix on 28 May 12The CK-12 Foundation addresses the growing costs of textbooks and the closed, outdated medium in which they are available. Focusing specifically on textbooks for U.S. K-12 schools, the nonprofit works with states and institutions to build web-based, collaborative "flexbooks" that are free to use and adapt in multiple formats like PDF, iPad and Kindle.