Testimonials

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

It's Worth Transitioning from Traditional Textbooks to CK-12 FlexBooks®
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It's Worth Transitioning from Traditional Textbooks to CK-12 FlexBooks®
CK-12 Digital FlexBooks® Allow You to Customize Curriculum
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CK-12 Digital FlexBooks® Allow You to Customize Curriculum
CK-12 Helps Student Go Deeper with Learning
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CK-12 Helps Student Go Deeper with Learning
CK-12's Flexibility and Accessibility
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CK-12's Flexibility and Accessibility
The Impact of CK-12 Simulations is Huge
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The Impact of CK-12 Simulations is Huge
CK-12's Mission Drove EPISD to Share Materials with Others
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CK-12's Mission Drove EPISD to Share Materials with Others
The Innovation of CK-12
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The Innovation of CK-12
It's "Very Easy" to Create CK-12 FlexBooks®
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It's "Very Easy" to Create CK-12 FlexBooks®
CK-12 Keeps Lesson Planning Process On-Track
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CK-12 Keeps Lesson Planning Process On-Track
CK-12 Makes Differentiated Learning Come to Life
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CK-12 Makes Differentiated Learning Come to Life
Using CK-12's Platform to Deliver Instruction on Devices
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Using CK-12's Platform to Deliver Instruction on Devices
Personalized Learning with CK-12
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Personalized Learning 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

It is great for note taking

Emma M.

it was awesome!!!!!!!!!!!!!!!!!It really helped me with science.

Emma E.

It helped me earn biology and life science better.

Emma D.

CK-12 helped me finally start to get good at math! I was struggling for years, but homeschooled my sophomore year, I started getting a grip and I am now about to start my Senior year. Now I can graduate with my friends and go to college to be an EMT like I've wanted to for many years! Thank you!

Emily

It's a cool way for my teacher to teach Earth Science.

Emily

CK-12 has helped me a lot in Biology. I has great articles and questions to help me get better grades in an Honors Biology class

Emilia D.

it has help me in all kinds of ways i will always use this site thanks for everything love you guys so much

Emanuyel

I get all my math assignments done here and learned alot !

Emanuel C.

It helped me pass my pre-k math class

Elliott

It taught me a lot about science and how many things are.

Elliott