Testimonials

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

CK-12 Simulations Lead to Richer Learning Experiences
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CK-12 Simulations Lead to Richer Learning Experiences
CK-12 Simulations Connect Classroom with Real World Situations
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CK-12 Simulations Connect Classroom with Real World Situations
CK-12's Key Role in the #GoOpen Movement
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CK-12's Key Role in the #GoOpen Movement
With CK-12, Updating Content has Never Been Easier
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With CK-12, Updating Content has Never Been Easier
Why Mrs. P Loves to Use CK-12 in Her Classroom!
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Why Mrs. P Loves to Use CK-12 in Her Classroom!
Create and Collaborate with Fellow Teachers Using CK-12
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Create and Collaborate with Fellow Teachers Using CK-12
Student Engagement: Working Independently Using CK-12
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Student Engagement: Working Independently Using CK-12
Parents Love CK-12
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Parents Love CK-12
CK-12 Has Engaging and Interactive Content
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CK-12 Has Engaging and Interactive Content
CK-12 Content to Match the Right Level
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CK-12 Content to Match the Right Level
CK-12 is User-Friendly and Fits Each School's Style
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CK-12 is User-Friendly and Fits Each School's Style
Pick Up Where You Left Off with CK-12 FlexBooks®
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Pick Up Where You Left Off with CK-12 FlexBooks®

Comments from Educators

CK-12 has helped me develop lessons that are interactive and present the material in a fun way. THANK YOU!

Holly

I can communicate with my children about assignments when I am working and I the resources have been a valuable resource for our classes with multi-faceted view points and study aids.... Thank you

Hodge Home School Academy

I am a newbie here but CK-12 has helped me a lot in teaching my students. Thank you, CK-12!

Helena K.

it helped me in class

Hannah

You folks have done a great job getting the mental pictures of experts into the minds of novices. What a nice body of work!

Gregg S.

CK-12 has helped me get text into the students hands

Grant R.

NOT AT ALL

Gracie

Simply put " You guys made my life easier!!!"

Gopalakrishnan R.

CK-12 has been an awesome resource! It provided much needed Biology resources for my daughter when she was a freshman.

Gladys

CK-12 reading selection and real world applications are engaging and informative. I like that the content is aligned to NGSS and that the lexile level and academic language support make the content accessible to challenged learners. The PLIX interactives are graphically -appealing concept reinforcements.

Gina W.

Comments from Students

Ck-12 has helped me a lot with science so I was wanting to challenge myself with 8th grade level.

Elliote D.

Its a great site!

Ellen

CK-12 has helped me so much in school, whether for the basis of a topic or extra-credit work. Happy Anniversary, and keep up the great work!

Ellie

Helped me pass my classes. Very helpful!

Elishah A.

It boosted me through a lot of math stuff.

Eliott

ck-12 has helped me because everyone time i go on it it helps me learn new and interesting facts.

Elijah J.

it helps with me math

Elijah

CK-12 helped me by improving my grades even though my grades are getting better and better.

Darriyuna

Helped me by watching different videos.

Daniela T.

ck 12 helped me with my learning by giving an explanation and justifying what i'm supposed to know in y grade levels. I'll happy 10th anniversary and thank you :D 5 stars

Darik A.