Testimonials

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

Let Your Students Explore with CK-12!
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Let Your Students Explore with CK-12!
Using CK-12 Every Day in Class
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Using CK-12 Every Day in Class
Instantly See CK-12 Content in More Than 90 Languages
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Instantly See CK-12 Content in More Than 90 Languages
Customizing CK-12 with Regional Content
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Customizing CK-12 with Regional Content
Save Money and Own Your Standards with CK-12
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Save Money and Own Your Standards with CK-12
Sharing CK-12 with Google Classroom and More
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Sharing CK-12 with Google Classroom and More
Why Teachers Love CK-12 FlexBooks®
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Why Teachers Love CK-12 FlexBooks®
CK-12's Free, Platform-Agnostic System for Finding and Editing OER Content
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CK-12's Free, Platform-Agnostic System for Finding and Editing OER Content
CK-12's PLIX and Interactives Help Students to Work Together
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CK-12's PLIX and Interactives Help Students to Work Together
CK-12 Made My Job Easier!
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CK-12 Made My Job Easier!
"I Use CK-12 Videos Whenever Possible"
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"I Use CK-12 Videos Whenever Possible"
CK-12 Meets and Exceeds Standards Requirements
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CK-12 Meets and Exceeds Standards Requirements

Comments from Educators

CK-12 has helped me develop lessons that are interactive and present the material in a fun way. THANK YOU!

Holly

I can communicate with my children about assignments when I am working and I the resources have been a valuable resource for our classes with multi-faceted view points and study aids.... Thank you

Hodge Home School Academy

I am a newbie here but CK-12 has helped me a lot in teaching my students. Thank you, CK-12!

Helena K.

it helped me in class

Hannah

You folks have done a great job getting the mental pictures of experts into the minds of novices. What a nice body of work!

Gregg S.

CK-12 has helped me get text into the students hands

Grant R.

NOT AT ALL

Gracie

Simply put " You guys made my life easier!!!"

Gopalakrishnan R.

CK-12 has been an awesome resource! It provided much needed Biology resources for my daughter when she was a freshman.

Gladys

CK-12 reading selection and real world applications are engaging and informative. I like that the content is aligned to NGSS and that the lexile level and academic language support make the content accessible to challenged learners. The PLIX interactives are graphically -appealing concept reinforcements.

Gina W.

Comments from Students

CK-12 has helped and has useful information on things

James M.

you made me learn

James J.

You helped in ways

James H.

you helped me learn things from a different angle. Today i am much better at math than i was one year ago. Thank you for helping me CK-12

Jaiden

cK-12 helps me understand science. Thanks :D

Jaelyn

ck12 helped me with my math and science

Jaedon

it has helped me understand the complexity of science and break it down for me to comprehend it a whole lot better.

Ivorie S.

Ck12 helped me in learn more about history, it also helped me in my reading and practice with the English. Thank you Ck12.

Ivanna N.

It helped me learn a lot, helped during my biology classes

Ivan R.

super helpful and easy to use

Ivana