CK12 – ONE stop portal in Education

CK12 – It s a free website funded by CK-12 Foundation. It’s provide free Online Textbooks , FlashCards,  Exercises  etc.

CK 12 - home

 

You can found that in different learning topics: Arithmetic, Measurement, Algebra, Geometry, Probability, Statistics, Trigonometry, Analysis, Calculus, Life Science, Biology, Physical Science, Chemistry, Earth Science, Physics, Engineering, Technology, English, Astronomy, History, Economics, SAT Exam Prep

You can use your “Google”, “Facebook” or “Twitter” account to sign in.

CK 12 - signin

 

But, if you just  want to take a look. NO sign in required.

 

Application for Educaiton

The best thing of this site is embeded “Google Translate” that provided into 75 languages!

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