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

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Felicity

CK-12 has helped my students and I a great deal. First, I would to say my students who use it, love it and have also told me that they have learned how to use to their advantage for their other subjects. Secondly, I love it too. I like that it has great s

Felicia J.

Allow for my students to receive enrichment with the concepts of mathematics.

Fatima P.

school

Fatima

TEACHING CHEMISTRY

Fatih

Assistance with after school program

Farae

It brings new ideas and learning strategies to the table.

Faith W.

sience

Faith

Instructional texts for students to learn curriculum standards

F Woodall

Thanks for all the content assistance!

Eve S.

Comments from Students

It is great for note taking

Emma M.

it was awesome!!!!!!!!!!!!!!!!!It really helped me with science.

Emma E.

It helped me earn biology and life science better.

Emma D.

CK-12 helped me finally start to get good at math! I was struggling for years, but homeschooled my sophomore year, I started getting a grip and I am now about to start my Senior year. Now I can graduate with my friends and go to college to be an EMT like I've wanted to for many years! Thank you!

Emily

It's a cool way for my teacher to teach Earth Science.

Emily

CK-12 has helped me a lot in Biology. I has great articles and questions to help me get better grades in an Honors Biology class

Emilia D.

it has help me in all kinds of ways i will always use this site thanks for everything love you guys so much

Emanuyel

I get all my math assignments done here and learned alot !

Emanuel C.

It helped me pass my pre-k math class

Elliott

It taught me a lot about science and how many things are.

Elliott