Testimonials
See the opinions of students and educators just like you. Select from the following to learn more.
Why Students Love CK-12!
Take a look at what these students have to say about CK-12!
Wonderfull! like that it’s really to the point and precise. There’s lots of pictures and diagrams that are helpful when you are trying to learn.
My teacher made these textbooks, and it has everything that we need for this specific class.
It’s really accessible so it’s easy for the whole class to get on and we just go!
We use it every day because there’s something new that our teacher wants us to look at!
My CK-12 book is really nice because it has all of the information I need in it. Instead of hunting for all of the words and questions I have, it’s all there right in order
Comments from Students
Well ck12 has helped me become the student that I am I think.
Blake N
they made me smart and tought me everything I needed to know and they made me a faster type writer that is what they did to make me a better person
Oletha Jones
it has helped in understanding some aspects of biology
Okeke John Joseph
It helps us nurture our innate skills and talents at different fields and subjects as well as it helps us find our profession to take for the college course to take.
Queenie Casquejo
Has provided needed resources and provided us with ideas.
Patricia Aguirre
I use the Science Flex book for school!
Veronika
Understanding topics on Science
Natalie Haycraft
it helped me with my learning in every subject
Nashaylah
it helps me in doing my homeworks and searching for the things that makes me curious
Nur Logan
Helped me get good grades and get better at Biology
Tom
AMAZING FACTS AND MINI LESSON CONGRATES
Billy
Thank you very much for my education.
Careena B
it helped me how i can search anything i wanted to search and it was very easy to do unlike all the other pages i used
Biannca Bryant
I use your site both for practice while working on particular lessons in math and as a form of remediation for those who are not mastering key ideas.
Runco I M
CK12 has made my life easier when my teacher assigns notes because these notes are easy to understand.
Gavin Downey
You have very good content
Patricia
It helped me keep track of my work
Adrian Razo
its dope
Comments from Educators
Awesome resource!!! Keep it free!! Keep up the excellent work!!
Christopher S.
it helped me on a lot of stuff
Christianna
I have used cK-12 to help teach and plan lessons for my students.
John A.
My class has learned so much from ck 12, its easy, resourceful, and all in one place. Thank you so much!
Alex J.
I have used articles on a variety of Science topics with students to enhance their understanding
Ela B.
free books!!!
Lauryn C.
CK-12 is off thee chart! I love using this tool in my chemistry classroom because it brings in a variety of perspectives and does progressive testing. A great tool for getting them ready for what NGSS is bringing down the pipeline.
Kelly M.
CK-12 is an amazing site to use to help students understand topics better, and it has helped me through my earth space honors class. Thanks so much!
Dalila Z.
I am just starting to use Ck-12, so far it seems like a great resource for homeschooling my daughters.
Margaret B.
Thankyou thankyou thankyou very much for providing these resources for free. ck-12.org is very great resource for students it is very helpful in schools and out of schools for self study.
Biswajit A.
CK-12 IS AMAZING! It deepened my child's knowledge and understanding involving geology, health, and much more! Thanks a bunch for always being there for my child when he most needed it.
Jewel
Help my students learn in their Science class.
John B.
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
I love your online book and resources! I have been using your online book with my middle school students for 3 years and I love it. Thank you for providing excellent materials for us.
Connie Jo E.
it has helped me to attain my bsc
Garvin M.
ck-12 is an amazing resource that provides up to date information that I can use to supplement our science textbooks. It also has leveled activities which helps when differentiating instruction. Keep up the great work!
Donna M.
As a teacher it provides a resource for my students they may not have thought about. I look forward to seeing what it has to offer.
Ed
Love the ability to customize lessons!
dabourd