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

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.