Author: Tracy Poulsen
Supported by CK-12 Foundation
CK-12 Foundation is a non-profit organization with a mission to reduce the cost of textbook
materials for the K-12 market both in the U.S. and worldwide. Using an open-content, web-based
collaborative model termed the “FlexBook,” CK-12 intends to pioneer the generation and
distribution of high-quality educational content that will serve both as core text as well as provide
an adaptive environment for learning
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