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'm just starting to use it. It looks agreat resource for me especially being a new teacher.

Abdirashid A.

Comments from Students

Well done CK-12! You've been helping me at my studies. You help me to gain a lot of extra materials! Such wonderful and helpful you are. Keep helping in education unit and keep improve till became the best! -Warm Hug-

Hafidh H.

It has helped me get better grades in class!

Erika

As an 8th Grader, CK-12 has been a truly amazing resource not only for school, but for curing my curiosity outside of the curriculum. I want to thank everyone who contributes to this incredible organization!

Hannah

CK-12 helped me and know I get more and it helps me learn more and get things even better than I did before.

Hanslhy

Hello! I greatly appreciate all that CK-12 has done to help me throughout my time in biology! I look forward to the amazing things that CK-12 will do in the future!

Evan W.