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

As a homeschooling mom, it's always a struggle to find comprehensive material that is logical and easy to understand. That is not guaranteed even when money is spent. This is science based with great links and supportive data.

DeeDee

I love the webinars; they helped me get my classes set up in ck-12 and helped me create my own textbook. Although I publish my own workbook I often assign extra practice for the students on ck-12.

Deb M.

Great resource for students and teachers

Dawn R.

Hi people from CK-12! First and foremost, Happy 10th Anniversary! You've really helped my science class by giving us great information and FREE learning textbooks! You truly were a godsend to my teachers here at school. Thank you so much creating this web

Davina

Thank you so much for your textbooks & question banks! The questions have provided a quick and easy way for me to give developmental assessments! Thanks for all you do, and I can't wait to see what more you have in store for this year!!

David T.

CK-12 is a great way for home-schooling.

David

It's helping my classroom with our space facts....

Dathian T.

It has saved our district thousands of dollars potentially allowing the district to use the money for other needs. It has allowed the students to use the book on their personal devices, but we also were able to print hard copies at reasonable prices to th

Darlene K.

ck-12 has made it possible for me to easily and quickly provide resources for my students at ALL levels! It's user friendly and student friendly! It's one of the 1st sites I visit because the content quality is consistently excellent.

Danielle D.

I can teach my kids a variety of subjects and topics. There is a lot of amazing material to help my kids in school.

Daniela

Comments from Students

love the worksheets

Marcie C.

The drill and practice has helped my son recognize which function a math problem requires.

Marc M.

CK-12 helped me in creating clil lesson and in developing biogeography.

Mara C.

to edcuate lower class student

Manish

video tutorials for lesson plans!

Macie M.

Improveing the motivation of my pupils

Maisa A.

I have read your biology books. With the help of ck books I am able to clear doubts of daughter and its helped me a lot. Thank you very much for CK

M.

CK-12 helps me find resources necessary for teaching standards and skills that are not in my current text book. It is supplemental material and websites that help me teach!

M Hance

I have just been assigned to teach 7th and 8th grade Science.

Lynn J.

CK-12 has provided resources so that I can be a more effective teacher!!

Lydia C.