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

I'm a first year teacher in an impoverished school district. Having virtual tools is the best way to close the achievement gap between my district and well-funded schools. Thank you!

Barbara F.

Providing lesson resources.

Brittany S.

Amazing books for my students at no cost. Thanks!

Aurora

plan lessons

Artemis B.

CK-12 is an amazing resource to teach my students! I love that I can collage material and personalize material to suite each of my classes. Thank you for all that you've done and please keep up the great work!

Arpit

very good after all it is a helpful site to use.

Arianna B.

CK helps me on my practice teaching experiences

Ariane

Ck-12 has really helped me pass my praxis test and it helps me daily with my classroom teaching my students to expand their mind.

April R.

I am an italian teacher of chemistry. I like my work and new teaching strategies. Often some of my students can speak English better than italian and as I know how much important english is, I invite them to keep an english lecture on a particular topic for the whole class, including me. Your videos, tests and documents are really helpfull in this! Thank you very much

Antonietta

CK-12 is an excellent resource for teachers and students. It has been very helpful in providing intervention & remediation for my students.

Antoinette C.

Comments from Students

this cite helps me learn science

Vivica F.

Ck-12 has helped me understand some of the things that are happening in my chemistry pre-ap class. Without Ck-12 I do not think that I would be doing well in class. Thank you and keep up the great work.

Vanessa R.

CK-12 has helped me learn and grow as a young teen.

Tyler G.

Ck-12 has been an amazing free educational site. I've learned so much from this site yet explored so little of it's content. Thank you Ck-12!

Tyler G.

CK-12 has helped me through biology when I didn't understand it, and it honestly helped me pass

Tyler F.

It has had helped me with my sience stuff in junior high thx

Tyler B.

It tells me ll about the subjects I love.

Tyler

it helped me study for my tests and get better grades.

Tyler

You have helped me with my work

Tyler

it has helped me by getting me the resources that i need for school.

Tye J.