Testimonials

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

Use CK-12 FlexBooks® to Replace Traditional Textbooks
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Use CK-12 FlexBooks® to Replace Traditional Textbooks
Creating Teams to Make CK-12 FlexBooks®
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Creating Teams to Make CK-12 FlexBooks®
Many Reasons to Use CK-12 FlexBooks®
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Many Reasons to Use CK-12 FlexBooks®
Translate FlexBooks® with just One Click!
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Translate FlexBooks® with just One Click!
The Power of CK-12's Highlighting Tool and Word Definitions
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The Power of CK-12's Highlighting Tool and Word Definitions
Finding the Right People to Pilot CK-12 FlexBooks®
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Finding the Right People to Pilot CK-12 FlexBooks®
Curating CK-12 FlexBooks® for Relevance and Engagement
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Curating CK-12 FlexBooks® for Relevance and Engagement
Incorporating Current Events into a CK-12 FlexBook® the Next Day
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Incorporating Current Events into a CK-12 FlexBook® the Next Day
CK-12 is the High Quality Online Resource Teachers and Students Can Trust
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CK-12 is the High Quality Online Resource Teachers and Students Can Trust
Talk to the Text with CK-12's Highlighting Tool
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Talk to the Text with CK-12's Highlighting Tool
El Paso Bought Laptops and Still Saved Money with CK-12!
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El Paso Bought Laptops and Still Saved Money with CK-12!
Upgrade, Update, and Customize with CK-12
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Upgrade, Update, and Customize with CK-12

Comments from Educators

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

Lydia C.

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.

i have used ck-12 while home educating my children via google apps

Luna F.

This resource has been invaluable to me. I can use it for remediation and acceleration. Thank you.

Louise P.

CK-12 has helped me provide online resources for my special education students to access at home!

Lurleen M.

I was able to create worksheet practice for my students.The videos available were also helpful in helping students review concepts

Lotoya G.

This has been an excellent resource for my class room. Our students do not have take home text books since we are a Title 1 school and money is limited. I have used this as a resource for homework and differentiation using your different workbooks. I have also used it as a large group presentation of a topic and then practiced using materials linked. I have also created several "webquest" type activities for use in our computer lab. Thanks for all of the hard work that went into this and I would love to see Social Studies/World/American history as fleshed out as the science is! Loved it!

Lorre C.

Comments from Students

It has help me get better at science

Dante

I found CK-12 when I couldn't find the answers for my homework. Best thing that could have happened, even if my teacher introduced me to it in a later time. The content is amazing! It's helped alot throught the school semester.

Daphne

this program helped me that education is important.

Danny B.

It helped me understand how to work with ratios.

Dannete R.

helping me with my work when i mostly needed it,, Thanks so much.

Danielle

Congrats CK12! I have only started using it, but it has helped me greatly. Keep up the wonderful work.

Daniel C.

this website gives you great help in math and science

Angelea P.

It has helped me learn different concepts of Earth Science.

Daniel C.

In the past, ck-12 has been a trustworthy and colorful resource that I could always rely on if I was struggling with a concept in class. In geometry this year, we're actually required to use it, and it certainly helps me to learn concepts well.

Cam

It has given me the chance to learn more about what I need. #CK-12 is awesome.

Cam H.