FlexBook
You can also download the textbooks on your phone to read offline, for those times when you don’t have Wi-Fi or cellular connection, making CK-12 content available anytime, anywhere, even without connectivity. You can download as many FlexBook® textbooks as you want, limited only by the storage space on your phone. Want to make room for new FlexBooks®? You can always delete the downloaded FlexBooks® you have finished reading to make room for new ones.
You can also personalize the app by adjusting the font type, font size, line spacing, and background color to suit your reading needs.CK-12 FlexBook® textbooks are available for the following subjects at the middle school (grades 6-8) and high school (grades 9-12) levels:
MathArithmeticMeasurementAlgebra (including Algebra I and Algebra II)GeometryProbabilityStatisticsTrigonometryAnalysisCalculus
ScienceEarth ScienceLife SciencePhysical ScienceBiologyChemistryPhysics
OtherSAT Exam PrepEngineeringTechnologyAstronomyEnglishHistory
See all of our learning resources at http://www.ck12.org. Also, see our companion app for Math and Science practice https://play.google.com/store/apps/details?id=org.ck12.app.practice
Don’t forget to check us out on social media!https://www.facebook.com/CK12Foundationhttps://twitter.com/CK12Foundationhttps://plus.google.com/+Ck12Org/https://www.pinterest.com/ck12foundation/
About CK-12CK-12 is a non-profit that creates and curates high-quality STEM content for students and teachers around the world. The organization was founded with the mission to enable everyone to learn in their own way—for free.
Category : Education
Reviews (30)
Completely non-functional - I managed to get our text books loaded, but they won't open. Can't click on anything. Completely frustrated.
Excellent content! Yet I want to suggest about 'archive' or adding a 'favorite' section where I can easily access the books I want even I don't download the books.
The registration process doesnt work. Sign on with google is not working. The date selector is the worst, if you have to select 1980's you will have to scroll back 20 × 12 = 240 times. Worst design ever
it is a great book! it contained an abundant information and it is aligned to the K to 12 curriculum
Very good and easy to use.
The App is damn awesome , Really dude i m astonished by this . Love you ck12
Thanks a lot
Although I just downloaded the app, I'm very impressed at what it represents for educators and students alike. It has become almost vital for offline access to have resources at the ready. This prevents internet overload, wondering, and safety from unwanted materials. Thank you for your efforts.
I downloaded full book offline but it didn't open why please fix..
What is the use of signing in when I can't even save and highlight any of the text?
It didn't even come up???!!?....
Very usful and save time
It's a wonderful app
Won't start
Won't start
Books are very good and interesting but app need lots of work.
App keeps saying No internet connection whiles at that moment i am browsing successfully on your page using uc browser
Why the app is not opening again. Why
Great app I love it
Loved it
One of the best educational offline app ever Thanks guys
This is very good app for those who likes studing books of science math and other subjects for free
Wish there were other subjects
I don't know anyone in India(compare to its population I mean,for nerdy guys not to hurt patriotism) have heard of it.but through Khan acad I have downloaded it and it's amazing free sky bound quality content...thank you guys. You are doing amazing service to world.
I've downloaded it twice cause I reall need it but it doesn't open, it takes time to wait, I'm just seeing the ck-12 logo nothing happens, please fix it
Mine doesnt seem to work also.. i updated it. And its not working anymore.. android kitkat 4.4.2... i suggest download flexbook somewhere else version flexbook 1.0.0
I recently downloaded the app and it's not working.
Though when i updated it, it wont open anymore. Pls fix it. Pls.
I've updated it, then it's not working anymore 😢😢😢
Excellent content, but I've just revised the rating down because it has many bugs. Firstly, if you remove a book from the offline library that was in the process of being downloaded, you cannot then download that book by adding it to the library. Second, there is an occasional display glitch which shows books from another screen. Third, offline downloading stops when using wifi and the screen is locked (but not when using cellular data). Many more examples, but these stand out the most.