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
Thanks U very much for building up this wonderful platform for children who need help. I am devoting in a volunteer program and their children like CK very much!
Yesmine
Helped me get to 7th grade
Yesenia
tremendously helped my students to understand science concepts, and motivated to do homework
Yolanda
You made me get a 75 on a test
Im Mad
CK-12 has given me all the resources and information I need to succeed in my class; and excel in my learning!
Hailey Gough
Ck-12 has helped me a lot with science so I was wanting to challenge myself with 8th grade level.
Elliote Dinovo
You are awesome. Thank you.
Elizabeth Aguilar
cK12 helped me with biology and some other subjects. Keep up the good work. Happy 10 anniversary!!! I am going to keep on using this site for so much more.
Haleigh Dobson
i can now tell the difference between smooth,striated and cardiac muscles
Takalani
CK-12 helped me in very very many diverse ways!
Victoria Kim
CK-12 helped me with science
Sawyer
Helped me in social studies.
Paul Trumpore
Ck12 has helped me push myself to be passionate about chemistry. thank you.
Abby Kilpatrick
Breaking down material into digestible bites.
Tanika Reiss
It was AMAZING at helping me do my homework.
Aj E
CK-12 has helped me understand biology.
Kahrie Stegman
School has been rough, and some of these assignments my teachers have assigned me, is also hard, but ck12 is much easier to work with
Victoria
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.
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