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ck12.org - all language versions

The CK-12 Foundation is a California-based non-profit organization which aims to increase access to low-cost K-12 education in the United States and abroad. CK-12 provides free and customizable K-12 open educational resources aligned to state curriculum standards. As of 2022, the foundation's tools were used by over 200,000,000 students worldwide. CK-12 was set up to support K-12 Science, Technology, Engineering, and Math (STEM) education. It first produced content via a web-based platform called "FlexBook." More information...

According to PR-model, ck12.org is ranked 33,487^th in multilingual Wikipedia, in particular this website is ranked 25,684^th in English Wikipedia.

The website is placed before mythopedia.com and after infectiologie.com in the BestRef global ranking of the most important sources of Wikipedia.

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*All Wikipedias

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enEnglish

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bnBangla

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simpleSimple English

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