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

CK-12 helps out on 2 of my subjects and it makes learning easy. And, some of the videos are funny and it makes learning fun too. I love CK-12 because I met some people who work for it and they were so nice. CK-12 is awesome, and I think it should never be

Lillian B.

I use your lessons as homelearning activities

Lianett H.

My school district went full implementation with the new NGSS standards, but did not provide us with any curriculum. CK-12 saved the day!! Thank you CK-12!!!

Leslie F.

I am a school admin. and I am interested in learning more about Flex books.

Leslie

CK-12 has helped us with our homeschooling and letting my daughter move at her own pace.

Leigh

free books!!!

Lauryn C.

CK-12 really helped me last year teaching 7th grade social studies. The content, which was broken down by standard, helped me and my students get a better understanding of the material.

Layne B.

It's easy to create assignments for my students and I love that they don't discriminate the fact that I homeschool my children and use this.I hope in the future they have more english to use.Thank you.

Laurisa N.

It has helped me with transitioning in a block schedule to incorporate NGSS lesson.

Laurie R.

CK-12 has been a great help daily as I integrate it into my Biology and Environmental Science Classes. My students love it and I can not thank the developers enough for making student & teacher friendly resources

Laurette S.

Comments from Students

ck-12 help me to improve a better grade and it help me on my skills on math i think this a phenomenal,amagazing and magnificent app that all teachers should use.C:

Grecia O.

It helped me learn.

Graham M.

It's really easy to use and kindof fun to use rather than other online education websites.

Gracie H.

It has helped me because sometimes I don't get my teacher and then I go and search websites that will help me and then my teacher told me to use ck-12 and that's what helped me and she puts she puts assignments on ck-12 for the whole class and sometimes she puts science assignments.

Gracia

Science has always been a harder subject for me, but ck-12 has super helpful and interesting information that is easily comprehended and fun to read. Thanks, and happy birthday!

Grace S.

It helped me do science.

Grace P.

hi ck-12! i really love studying with ck-12

Grace

I'm just getting started, but from what I already know this program makes education easier and faster. Also, it helps when it comes to management of time education.

Glorious H.

I personally like the idea of flash cards and execises, this are very excellent when it comes to learners revision

Gaurav K.

It helped with all the facts.

Giovanni W.