Testimonials

See the opinions of students and educators just like you. Select from the following to learn more.

It's Worth Transitioning from Traditional Textbooks to CK-12 FlexBooks®
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It's Worth Transitioning from Traditional Textbooks to CK-12 FlexBooks®
CK-12 Digital FlexBooks® Allow You to Customize Curriculum
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CK-12 Digital FlexBooks® Allow You to Customize Curriculum
CK-12 Helps Student Go Deeper with Learning
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CK-12 Helps Student Go Deeper with Learning
CK-12's Flexibility and Accessibility
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CK-12's Flexibility and Accessibility
The Impact of CK-12 Simulations is Huge
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The Impact of CK-12 Simulations is Huge
CK-12's Mission Drove EPISD to Share Materials with Others
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CK-12's Mission Drove EPISD to Share Materials with Others
The Innovation of CK-12
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The Innovation of CK-12
It's "Very Easy" to Create CK-12 FlexBooks®
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It's "Very Easy" to Create CK-12 FlexBooks®
CK-12 Keeps Lesson Planning Process On-Track
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CK-12 Keeps Lesson Planning Process On-Track
CK-12 Makes Differentiated Learning Come to Life
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CK-12 Makes Differentiated Learning Come to Life
Using CK-12's Platform to Deliver Instruction on Devices
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Using CK-12's Platform to Deliver Instruction on Devices
Personalized Learning with CK-12
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Personalized Learning with CK-12

Comments from Educators

In the digital age I find have a paper textbook for a dynamic science world limiting and not budget wise. Thank you for making this service available! I find it very useful as a resource in my classroom.

Charles R.

teaching

bryant

Amazing resource! With so many statewide educational budget cuts, it has been extremely difficult to find quality teaching resources. cK-12 has filled that niche quite nicely! I would recommend this valuable site to anyone. Thanks!

Bryan H.

Ck12.org has helped each and every student who has come to our center. I was been a great experience for our students, as well as a enormous help for the teachers! CK12.org has made our learning journey easier and more exciting!!!

Bright Harbor Academy

Identify resources staff can use to develop relevant science curriculum

Brian A.

This is a great "go-to" site for my daughter and I when she is struggling with a new math concept and needs that extra help. Thanks cK-12!!

Brenda S.

helped me learn how to do my math better

Brady

CK12 has helped me assist others by allowing them to be a part of this learning initiative.

Boris A.

I LOVE YOU guys thank u very much i appreciate your efforts for helping students to learn their subjects.

Biswajit

Thankyou thankyou thankyou very much for providing these resources for free. ck-12.org is very great resource for students it is very helpful in schools and out of schools for self study.

Biswajit

Comments from Students

cK-12 has helped me understand more about my biology class. It provides my teacher easier ways to do fun and competitive quiz's.It provides a bundle of notes that are very easy to access and you can make your own highlighting marks and notes. Thanks!!

Arianna V.

I haven't been on here yet but my teacher showed me today and it lokks pretty cool and its very fun we did a quiz on seasons

Arianna

cK-12 is helping me the pass my FTCE test, which i want to take next month.I don't have the money to buy the book, so i am greatful for the help,

Ann M.

Helped me become a faster & well skilled learner.

Andy R.

cK-12 has been of immense help to me. I used to satisfy my hunger for knowledge through books only. One day I came across this wonderful app which has pacified my hunger. Thank you!

Ankit C.

ck-12 helped me by supporting myself and for trying my best

Anjel B.

Ck-12 has always been my study buddy. I like the fact that there is more than one way to learn about something rather than sticking to a typical lecture or textbook. It lets me explore new concepts.

Anjali

It gives me information to help with classwork and homework.

Aniyah

it has helped me by giving me good answer advice

Aniyah

it help me with science and helped me get my grade up by teaching me my lesson and letting me look over the words just like quizlet

Aniya S.