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

Very good resources and excellent lessons.

Erington

Great resources to support MYP curriculum without textbooks

Erin

I have relied on CK-12 for simulators to help my students understand topics that are not able to be done easily in the classroom and has helped them to learn and also saved the school money!! Thank you and happy anniversary!!

Ericka O.

It has helped me with the additional resources available. They are very useful.

Emma

its helps me get better and learn new resources

Eric S.

lesson plan for the topic mendel's law of inheritance

Eric C.

Send Geometry support materials

Emmanuel N.

Access to awesome texts for my students!

Emma

I love using the free resources as a literacy component in my science classroom. Many topics that I teach can be found at Ck-12 and the content is both accurate and engaging!

Emily I.

I began homeschooling and immediately went into panic mode, but after another homeschooling mother recommended this site I was immediately put at ease.

Elizabeth S.

Comments from Students

It lets me learn lessons at my own pace and learn from my mistakes so I really like that.

Flor F.

I love how well the examples are explained and i couldn't do my homework without it. :0

Fernanda

CK-12 has helped me memorize lots of new scientific words and helped me become better and smarter at paying close attention in what I am reading. I also like how it doesn't take a lot of time to complete a task. It only takes me about 15 minutes to comple

Fernando

cK-12 has been part of my experience as student and has been helping me to discover in a different way the sciences

Estefany V.

i like using ck 12 because it helps me learn alot.

Felsiha, Daquan

Ck12 has helped me learn how to find keywords in the question and match it with the answer

Ervin M.

It has helped me improve my Science skills, and continues to help me more often as I prepare for my AP Exams. Happy 10th Anniversary!!!

Esperant K.

helped me learn and understand more.

Emmalee

Happy 10th anniversary! Great job so far, you have helped me so much because you are online so I can access you anywhere!

Emma T.

Ck12 helped me pass my science class this year. #youlit

Emma H.