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 have been able to use CK12 to allow my homeschooled student to explore and expand on concepts we have studied in greater depth.

Donna

ck12.org has been a great find! Free, quality on-line textbooks that can be customized as desired. PLUS on-line 'instant' quizzes that provide feedback and links to my LMS - a true TREASURE! Congrats on 10 Years!!!

Donna E.

CK-12 provides great mini lessons, which can be used as Bell Ringers or introductions to lessons.

Donna

CK-12 has helped liberate my classes from a traditional textbook. Now my students can read the content they need at their own level.

Donald K.

It is helping us in our Catholic school System in the Diocese of Gbarnga, Liberia- West Africa

Dominic C.

by helping kids who need tutoring at home

Dolores C.

when students need home tutoring

Dolores

My students love CK-12's Braingenie, and I do too. This is my 2nd year using Braingenie, and I have helped several other teachers become acquainted with it too. I especially love that I can create the goals for my students and then track their progress through the reports.

Denise T.

CK-12 has given my kids a great foundation of knowledge in the subject they are studying, while allowing me the opportunity to add additional information and videos if needed.

Denise R.

I would like to have access to the webinar to use some of the 3-5 resources. I liked the tremendous amount of activities I can use with my fourth grade class.

Denise H.

Comments from Students

they helped me learn more about the digestive sysyem

Kiarah C.

This site has helped me, with my biology, projects, understandment of learning more ways to solve work. Happy anniversary.

Kiara M.

Has helped me find all I need to know.

Kiara

In my math class this has been a great resource for homework and classwork.

Khadara

It's helped me a lot with my AP Biology class it clears up the topics I don't understand.

Keyli

CK-12 has helped me with my science class!

Keylee

It is a great learning tool for me and I love it so much

Keydon S.

An awesome learning tool

Keelan M.

CK-12 has helped me bring my grades up and help me pass 7th grade. It is an easy and credible source anyone can use.

Keekee C.

this has helped me with my learning abilities and also by learning new things I have never even thought about

Keekee