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We are leaders in OER (open educational resources) by the generation and distribution of free digital content for the K-12 curriculum. CK-12 provides high quality digital textbooks for K-12...
Mar 12, 2015 · 19K views 8 years ago. CK-12 is a non-profit organization that creates and aggregates high quality, curated STEM content. Our library includes over 5,000 super awesome math and science concepts...
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- 20.2K
- CK-12 Foundation
May 10, 2013 · Learn how to get started using CK-12's FlexBook system. Explore concepts, FlexBooks, modalities, and more! Visit: http://www.ck12.org
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- CK-12 Foundation
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The links below are reviews by Cathy Duffy for Homeschooling products published by: CK-12 Foundation. CK-12 Interactive Math Series.
Mar 18, 2022 · CK-12 Interactive Math is a series of free, online courses closely aligned with the Common Core State Standards for Mathematics (CCSS). CK-12 offers many other free courses as well, but I’m limiting this review to the math courses for middle school and high school because they share common features.