Testimonials

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

Worry-Free Content Curation with CK-12
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Worry-Free Content Curation with CK-12
CK-12 Offers Material Unavailable By Traditional Publishers
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CK-12 Offers Material Unavailable By Traditional Publishers
Starting with a CK-12 FlexBook® and Curating as You Go
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Starting with a CK-12 FlexBook® and Curating as You Go
Students Rely on CK-12 Flexbooks®
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Students Rely on CK-12 Flexbooks®
Worry-Free Content Curation with CK-12
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Worry-Free Content Curation with CK-12
It's Easy for Students to Search CK-12 FlexBooks®
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It's Easy for Students to Search CK-12 FlexBooks®
Embedding Videos in CK-12 to Enhance Student Understanding
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Embedding Videos in CK-12 to Enhance Student Understanding
Updating FlexBook® for Personalized Learning
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Updating FlexBook® for Personalized Learning
OER Publishing and Sharing on CK-12
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OER Publishing and Sharing on CK-12
The Awesome Ability to Update CK-12 FlexBooks®
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The Awesome Ability to Update CK-12 FlexBooks®
CK-12's FlexBooks® are Easy To Use
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CK-12's FlexBooks® are Easy To Use
Using CK-12 in a Large School District
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Using CK-12 in a Large School District

Comments from Educators

it helped me on a lot of stuff

Christianna

Great science content! Lots of resources; video, text, quizzes. Love the connectivity to Edmodo. Very helpful!

Christiana D.

ck12 has helped me by teaching me new things in algebra and learning more and more about daily math life

Christian D.

I first used the CK12.org webpage in conjunction with traditional style biology ibook four years ago after going to a technology training. Now I have open sourced a regular biology Flexboook and an honors Flexbook for use by our entire school and embedded

Chris J.

So fun for students. Used the Natural Selection mouse interactive as a Do Now, so great.

Cheryl

our lessons make my job so much easier. I can count on quality lessons from you and can use them to meet student accommodations. Thank you.

Chris E.

I can find problems that suitable for my grade 8 son.

Cherry P.

it was a good educational website

Chelsea

Wonderful simulations to enhance student understanding AND they work on the student iPads!

Chauncey H.

it help my student to have a better understanding on the specifc topic in the class discusion.

Charlin

Comments from Students

CK-12 has been incredible. I've been using it to homeschool my middle-schooler for two years now, and it is unbeatable.

Kasheia

I like to have well rounded lessons and your lessons are easy to use on the iPad.

Karen S.

I have used it with Google classroom. When introducing a unit, I will have students view a video, take notes and follow-up with a discussion of what they learned. Students will complete some practice on the concept.

Karen E.

ck-12 is helping me design my own text book for students. It is great that I can incorporate desmos activities and hands on learning.

Kande W.

I teach at-risk troubled students in a Disciplinary Alternative Education Program setting. Most of my Students have gaps in their Mathematical Foundation. CK12.org helps eliminate those gaps. A strong Mathematical foundation is required in many technic

Karen

Well, im a teacher and a instructor in Mexico, and my students use this pages too much

Julio R.

I just found this website yesterday, and I think that it's awesome! I can't wait to use this all the time in my classroom! Thanks!!

Julie B.

It has helped me find out more about molecules and cells along with animals and plants in my class and helped me to pass my tests and study.

Zoie

I've actually started taking notes because of all the real world examples in science because the info doesn't click if I don't relate. Since studying and taking notes on this site every single test I have studied for on here, I passed!

Zoe M.

I need it for my homework, so it helped me pass math.

Zachary