Ck12.org
Visit ck12.orgWe collected the majority of metadata history records for Ck12.org. CK12 has a poor description which rather negatively influences the efficiency of search engines index and hence worsens positions of the domain. Ck12 has neither keywords, nor description at the moment. But the domain used to have both of them in June 22, 2015.
Ck12.org metadata updates
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September 14, 2022 CK12-Foundation |
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September 23, 2019 Welcome to CK-12 Foundation | CK-12 Foundation |
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May 17, 2016 Free Online Textbooks, Flashcards, Adaptive Practice, Real World Examples, Simulations | CK-12 Foundation |
CK-12 Foundation provides a library of free online textbooks, videos, exercises, flashcards, and real world applications for over 5000 concepts from a... |
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June 22, 2015 Free Online Textbooks, Flashcards, Practice, Real World Examples, Simulations | CK-12 Foundation |
CK-12 Foundation provides a library of free online textbooks, videos, exercises, flashcards, and real world applications for over 5000 concepts from a... |
K-12 education, Flexbook, OER, Curriculum, Digital textbooks, Ebooks, Lesson plan, Workshe... |
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February 24, 2014 Javascript is Disabled | CK-12 Foundation |
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January 20, 2014 CK-12 Foundation | Javascript is Disabled |