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

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

Abdirashid A.

Comments from Students

This site has helped me study for test in my science class. The quizzes are spot on and the activities I can do really help nas well.

Robert K.

I have advanced in knowledge of calculus

Robert Y.

I like this website because my science teacher has us read out of the books on this website and it's alot better then doing a powerpoint

RJ F.

CK-12 has given me a library of awesome resources to utilize that help me better understand the topics in my classes.

Robbie R.

it has helped me learn many things that i would not have the chance to learn for a while

Rj

CK-12 has helped me be able to access information that would be in my text books when I am out of school and it is a great source for studying for exams!

Morgan

its helped me learn a lot of things i was struggling with

Monunique A.

you helped me get A's on my quizzes

Monique

CK12 helped me by improving my math skills by nearly 25 percent! Without CK12, I doubt I'd ever pass my math class!

Moneebah A.

You saved me from using an old gross textbook and helped me study and take notes in my biology class

Monique