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

As a homeschooling mom, it's always a struggle to find comprehensive material that is logical and easy to understand. That is not guaranteed even when money is spent. This is science based with great links and supportive data.

DeeDee

I love the webinars; they helped me get my classes set up in ck-12 and helped me create my own textbook. Although I publish my own workbook I often assign extra practice for the students on ck-12.

Deb M.

Great resource for students and teachers

Dawn R.

Hi people from CK-12! First and foremost, Happy 10th Anniversary! You've really helped my science class by giving us great information and FREE learning textbooks! You truly were a godsend to my teachers here at school. Thank you so much creating this web

Davina

Thank you so much for your textbooks & question banks! The questions have provided a quick and easy way for me to give developmental assessments! Thanks for all you do, and I can't wait to see what more you have in store for this year!!

David T.

CK-12 is a great way for home-schooling.

David

It's helping my classroom with our space facts....

Dathian T.

It has saved our district thousands of dollars potentially allowing the district to use the money for other needs. It has allowed the students to use the book on their personal devices, but we also were able to print hard copies at reasonable prices to th

Darlene K.

ck-12 has made it possible for me to easily and quickly provide resources for my students at ALL levels! It's user friendly and student friendly! It's one of the 1st sites I visit because the content quality is consistently excellent.

Danielle D.

I can teach my kids a variety of subjects and topics. There is a lot of amazing material to help my kids in school.

Daniela

Comments from Students

WOW! I just absolutely can not express so helpful CK-12 has been in my science teaching. We are moving away from our old standards and adopting NGSS. We currently do not have a textbook to use with the students and CK-12 has been a life saver! Thank you!

Lisa N.

Resources fo my science students

Lisa J.

I use ck-12 books in my science classes, especially in Advanced Biology. Thanks so much for the awesome resources!!

Lisa J.

I am home schooling my 15 year old son and have been having financial problems. If it were not for this web site, I would be struggling to provide him with proper resources to teach him. Thank you so much!

Lindy S.

homeschool

Lindsay P.

CK-12 has provided consistent content for math courses that are both adaptable and flexible.

Linda S.

CK-12 helps out on 2 of my subjects and it makes learning easy. And, some of the videos are funny and it makes learning fun too. I love CK-12 because I met some people who work for it and they were so nice. CK-12 is awesome, and I think it should never be

Lillian B.

I was asked to teach a high school physics class at a homeschool coop. It's been a great many years since I had physics in college. cK-12 helped me re-learn physics for myself, and it gave me ideas for what to teach. My students and I especially apprec

Linda M.

I use your lessons as homelearning activities

Lianett H.

My school district went full implementation with the new NGSS standards, but did not provide us with any curriculum. CK-12 saved the day!! Thank you CK-12!!!

Leslie F.