Testimonials

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

CK-12 is Adjustable to Each Student's Level of Learning
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CK-12 is Adjustable to Each Student's Level of Learning
Students Love CK-12 Study Guides
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Students Love CK-12 Study Guides
CK-12 PLIX Makes it Very Easy for Teachers With Very Little Prep Time
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CK-12 PLIX Makes it Very Easy for Teachers With Very Little Prep Time
Personalizing and Blending Learning with CK-12
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Personalizing and Blending Learning with CK-12
CK-12 Meets Every Student's Needs
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CK-12 Meets Every Student's Needs
EPISD Saw Results After One Year of CK-12 FlexBooks®
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EPISD Saw Results After One Year of CK-12 FlexBooks®
CK-12 Offers Support for All Students and Teachers Worldwide
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CK-12 Offers Support for All Students and Teachers Worldwide
Be a Champion Educator with CK-12
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Be a Champion Educator with CK-12
Using CK-12 Modalities to Bring Learning to Life
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Using CK-12 Modalities to Bring Learning to Life
CK-12 Keeps Your Students Engaged
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CK-12 Keeps Your Students Engaged
CK-12 Fuels a Greater Learning Experience
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CK-12 Fuels a Greater Learning Experience
CK-12 Availability: No More Excuses
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CK-12 Availability: No More Excuses

Comments from Educators

I've been working with a student who is preparing to take a nursing exam. It it difficult to find a single website that combines all the subjects on the exam - CK-12 is one of the few and definitely the most comprehensive. The breadth of content on CK-12 is remarkable. The material is almost always of a very high quality. I'm happy to have discovered the site and will continue to incorporate its resources into my future teaching.

John P.

It is a great multimedia resource that students like to use collaboratively and independently.

John H.

It's a very fun and interactive way to teach and sum up the boring information teachers repeat again and again.

Joe M.

I have used cK-12 to help teach and plan lessons for my students.

John A.

Ck-12 is amazing. My students love the worksheets!

Joe

i love ck12! i can use it to work with my small asian and african children!

Jimmel

CK-12 IS AMAZING! It deepened my child's knowledge and understanding involving geology, health, and much more! Thanks a bunch for always being there for my child when he most needed it.

Jewel

The CK flexbook has allowed our science department to have an up to date resource for most of our science classes. We have not had hardcopy text books for over 20 years.

Jim L.

It has been a great resource to use. I believe it benefits my students more than me, but it is certainly been a useful tool-resource.

Jim K.

I use it with special education students to find articles at lower reading levels. I also post links to articles on google classroom for students to read to reinforce their learning from class.

Jessica D.

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