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
CK-12 helped me out in areas that some of my teachers do not explain as efficiently.
Ella
It has helped me learn more thank you k12
Takira
CK-12 has helped me understand biology.
Kahrie Stegman
I had a rough time with chemistry but this helped
Rachael
CK-12 helps me understand science a lot better than just randomly taking notes. There's pictures and explanations, too, making it easier to understand the text.
Kaitlyn L
you have taught me how to evaluate problems
Damien
Thank you so much in helping me learn all about science waves, EM waves, etc. I really understood the topic more in depth, and will definitely recommend this website to others! Please make books for economics if not already there. Thank you so much!
Bhavana
It has helped me learn my 2 worst subject and it is now one of my favorite subjects all because of cK-12
Quinn Ames
CK-12 has helped me better understand how the world is and it's amazing. So, congratulations,happy aniversery and thank you for this amazing website. BYE! ;-P
Carissa
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 halped me get better grades in school. It's been a great study tool for me.
Samantha Mcfarlane
it helped me survive physics last year. i would have been lost without it
Alan Grajeda
It has helped me learn science. In science class we always use this site. My teacher loves this site. Thanks for everything.
Jordan
CK-12 Helped me better understand things that were spoken in-class.
Zach
Its a great site!
Ellen
Hello,CK-12! As a non-native English speaker,I have been reading CK-12 textbooks for learning not only STEM but also English. I really appreciate your hard work to provide such a good learning platform for so long. Wish you all happiness,health and prosper
Weilai
you helped me with math and the periodic table
Dagon Evans
Great way to continue the journey of forever learning!
Alberto Brioso
Hello! You guys have helped me through my Pre-Calculus class and I don't know what I would do without you! Thank you
Abigail Franco
CK-12 has helped me a lot. My biology teachers occasionally assigns us CK-12 assignments to do. One time she made us do 23 different lessons! The whole point is that CK-12 is an easy way to learn and to have fun while doing it. Also I think that if I could change anything about CK-12 I wouldn't even do a thing.
Comments from Educators
CK-12 has been a great resource for me! The Fourth grade social studies curriculum was new to me last year, so I used ck-12 as my guide! Thanks CK-12 for your awesome free resources!!
Adrienne K.