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

Integrating all subjects and resources.

Andrea T.

I love using your textbooks for my classroom. Ties in tech and provides an inexpensive alternative.

Andrea M.

I use it as a resource in my classroom.

Amy L.

CK-12 has provided our school with free science texts and has given my students the opportunity to publish their writing online in the Understanding Biodiversity book. Thank you!

Amy H.

Helped me in my Anatomy and Biology classes - reinforcing content through grade appropriate reading

Amy B.

CK-12 has been an integral component in our move to 1-1 in the classroom. The ability to edit the content allows us to tailor the CK-12 textbooks to fit our needs. We love CK-12!

Amy

i can make my students understand better, thanks

Amruth L.

CK-12 has been helping us teach our children several subjects. Thank you #ck12foundation .

Amber

Hello CK12! I am an 8th year science teacher. I taught in Philadelphia and Washington DC, and am currently in Abu Dhabi teaching science to 12 year-old girls. CK12 is a revolutionary website. Not only can I access high-quality science literature, but I ca

Amber W.

You helped my kids love learning again! I've been homeschooling for 5 years and we just found your site last year and it's been amazing thus far! Thank you for all you do to help educate our children!

Amber

Comments from Students

I have chronic pain that doesn't allow me to go to school. I had a really hard time homeschooling until I found this website. CK-12 has helped me to be able to get an education until I am able to go back to school. Thank you.

Tya

CK-12 has helped me a lot. It has helped me understand certain subjects in science and much more. In my opinion CK-12 is one of the best educational websites there is.

Louis A.

Our school just gave each student a chromebook, making us 1:1 school. Only 1 of 2 in our district. Our school is Title one with many obstacles to overcome.

Trish P.

CK-12 has helped me with a lot of things such as science, reading, math and social studies. I like using CK-12 because it is extremely useful and I suggest you to try it out also.

Trinity

it had helped me learn things that i didn`t know in a way i can understand.

Trinity J.

You guys made it so i don't have to carry around an ungodly amount of textbooks. Thx.

Tanner W.

It has helped me get a better understanding on certain subjects.

Tanner M.

I don't understand why it works like this but, it is amazing so I like it but, I think it shouldn't have a login for the students the teachers should only have a login. I love this website it helps me with my learning a lot so, thank you and have a good y

Taniya H.

I love how I can go on here and see any information that I might need for a project pr lesson

Sunya A.

They helped me learn more about dividing fractions.

Susana C.