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 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

CK-12 Helped me study for science tests that were on subject I had trouble with. Thanks CK-12!!!

Keegan

i learned that some things are grose but it was fun at times doing it with my mom and brother o ya the dog to she would hog the couch

Patrick M.

You guys helped me in so many numerous ways with my education even though I am a college student! This website I believe crosses the barrier to be able to teach anyone from any grade level and that says a lot!

Kaylor D.

CK-12 has helped me with Integrated Science!!

Kayley P.

Thank you for being an awesome site! You've helped a lot of people!

Katelyn

CK-12 has helped me be connected to my chemistry class and learn information through examples and pictures when my teacher is not around.

Kat

Hi! I wanted to thank the ck-12 team for helping me throughout my years in both middle and high school. I've been using ck-12 for many years and have to say it's one of the best programs out there! Thank you so much for making ck-12 possible!

Katelin

Ck-12 has helped me to achieve my work and happy anniversery CK-12!

Kat

CK-12 helps me learn about science

Kassie

it helps me learn about energy

Kadajah J.