Testimonials

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

CK-12 Helps to Address Learning Gaps
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CK-12 Helps to Address Learning Gaps
CK-12 Offers Resources Students Understand
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CK-12 Offers Resources Students Understand
Embedding Videos in CK-12 to Enhance Student Understanding
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Embedding Videos in CK-12 to Enhance Student Understanding
Easy to Update and Modernize Content with CK-12
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Easy to Update and Modernize Content with CK-12
CK-12 Makes Differentiated Learning Come to Life
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CK-12 Makes Differentiated Learning Come to Life
CK-12 Keeps Your Students Engaged
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CK-12 Keeps Your Students Engaged
CK-12 Offers Material Unavailable By Traditional Publishers
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CK-12 Offers Material Unavailable By Traditional Publishers
CK-12 Meets Every Student's Needs
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CK-12 Meets Every Student's Needs
Confidence in Connecting to Standards with CK-12
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Confidence in Connecting to Standards with CK-12
It's Worth Transitioning from Traditional Textbooks to CK-12 FlexBooks®
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It's Worth Transitioning from Traditional Textbooks to CK-12 FlexBooks®
CK-12 Has Revolutionized How I Teach
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CK-12 Has Revolutionized How I Teach
Using CK-12 Every Day in Class
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Using CK-12 Every Day in Class

Comments from Educators

In many instances, available resources are not sufficient to explain a particular problem, so it is a relief to be able to turn to cK-12 for help.

Marion N.

I LOVE YOU guys thank u very much i appreciate your efforts for helping students to learn their subjects.

Biswajit

preparing for physics lessons

Adeoye

its helps me get better and learn new resources

Eric S.

wonderful resource for my homeschoolers

Easton

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

Abdirashid A.

Helped me in my Anatomy and Biology classes - reinforcing content through grade appropriate reading

Amy B.

Send Geometry support materials

Emmanuel N.

cK-12 has provided me with material to support my curriculum, and it offers me a variety of activities to support the diverse learners and abilities in my class. Thanks cK-12; you are a teacher's dream come true.

Judith

Thanks for the science and math content

Donna H.

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.

This website was a great thing for us to us because it help us to do many of our assignments. The class and I really appreciate this website and what it has provided for us. My class and I have a new assignment to do and we use cK-12 because it makes us do different things on it to provide us and them with different information they need.

Billy S.

CK12 was a great resource for my middle school students because they were preloaded on their devices. Our internet connections were spotty at best in my classroom and CK12 provided a stable platform for me to teach and students to learn.

Jennifer

It's easy to create assignments for my students and I love that they don't discriminate the fact that I homeschool my children and use this.I hope in the future they have more english to use.Thank you.

Laurisa N.

Ck-12 has brought science to life in my classroom with online videos, challenging reading and built in assessments to help my students know what they are learning.

Courtney M.

CK12.org has given me an online text and teaching materials that are NGSS aligned. This has enabled me to teach to the standards even though our school does not have a physical textbook. This has been such a lifesaver as a junior high science teacher!

Anne K.

We use cK-12 for our high school Science and math curriculums and the students love and the teachers find it easy to use and an enhancement over traditional textbooks.

Jack

It is a great multimedia resource that students like to use collaboratively and independently.

John H.

Comments from Students

CK-12 has helped me by actually making sense when I need information for my science class.

Kaitlyn Potratz

Ck12 helped me a lot revising lessons and keeping up with my math lessons

Mathis

Math is a universal language one, that we don't fully understand, or I feel being taught properly in schools. Thanks to Ck-12, I am able to bridge the gaps in my knowledge regarding basic math concepts and move on to more advanced topic. Thank you for b

Wensley

The math and science is the best, and it lets me control when and how I learn. Overall the best homeschool education place.

Galayna Erickson

CK-12 has helped to improve my Science Grades

Alan

it helped me by knowing new stuff and it is better than reading it of a book thank you for making the you guys are awesome

Makayla

you guys have helped me with learning new things

Betty

Always help me do my lessons with articles about the topic im learning about. Thanks for taking your time and making it all free.

Peter

ck12 has helped me by helping me learn science and know I am on a A-B on a roll. THANK YOU CK12!!!

Gabriella G.

I understand all the math problems here.

Pauline O

this helps me a lot like i no longer have to research stuff from fake websites.

Samya

You helped me and my class with science and on awesome stuff like that!

Tony

CK-12 has helped me by giving me easy access to textbooks I need for my school work.

Faith Brandt

the videos were very infomational

Jordan Smith

CK-12 has helped me allot in learning science. i usually can't pay attention in class so this is what i use and it where i learn most of my science honestly and its nice neat orginzaed and just easy to use. so thanks for making this

Samandar Khusenov

it has help me with my school and ect...

Bethy Pretty

it helped me with my notes

Maggie

In a word, it helped me learn more about Chemistry.

Abdul B