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
Helps me with math and science and it is easy to use and fun thank you Ck - 12
Payton Spears
They have provided the ability to learn more things in new ways.
Blake Godbold
CK-12 helped me with my school work.
Addison
Ck-12 has primarily helped with science in certain ways and im glad it still exists today
Daden
CK-12 has help me by leting my do all of the things that i need to do on these cromebooks
Samatha Martin
Hi! My name is Madison Soboul but I really like the name Elizebeth so... Anyways back on topic. I think Ck-12 has helped me become a better reader because I want to beat my record and speed. I think you could add a few things though, I think you should put some games where you answer questions to beat other students in your class.
Elizebeth
Thank you cK-12! You helped me so many times to study for my chemistry and human body tests and quizzes! I can't wait till I go into astronomy and learn all about it! Thank you for everything!
Alex
CK-12 has helped me because it has taught me things about space and the earth that i maight of never had learned with a different site. Also CK-12 has done an amazing job making their material easy to use and it isnt confusing
Hailey
it helped me get better at math and helped me raise my math grade from a 45 to a 89
Faruk
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 ha helped me by making it posible for me to learn about energy and all sorts of scientific stuff. i love ck-12
Tony Barry
I really like the many ways of learning content. The practice, videos and articles are so current and valid.
Stephen K
ck-12 has helped me a lot to improve my grades
Fatima V
just found this random website because i was searching for places with convergent oceanic-oceanic plate boundaries
William
It helped me because its about math it can teach you alot of things math mostly and prime numer blocks pictures
Abril V
Many things that I couldn't learn anywhere else, I can learn here for free! To me that's the best I can get.
Tamaria
I have received so many materials, and i have got 100 in science test uhuyy!!
Vinia
it helped me in making me advace in my studies and in school
Comments from Educators
CK-12 is a great way for home-schooling.
David
Well I have not yet explored the site, however I am highly excited about learning this system and seeing how it can be useful for my students.
Leroy J.
I enjoy reviewing our lessons and adapting them with my text. It gives extra text for my students to review.
Adrienne S.
helped my 2nd grade students practice, good site
Juan G.
I use ck-12 books in my science classes, especially in Advanced Biology. Thanks so much for the awesome resources!!
Lisa J.
thanks u have helped me a lot ..just add more materials especially on geosciences
Jaspin K.
I use ck-12 in my classroom. The school does not provide textbooks for the students, so I use the textbooks from ck-12.org for all of my classes except for AP Physics.
Cynthia B.
I am home schooling my 15 year old son and have been having financial problems. If it were not for this web site, I would be struggling to provide him with proper resources to teach him. Thank you so much!
Lindy S.
really helpful for my children
Kumudini
Hello CK12! I am an 8th year science teacher. I taught in Philadelphia and Washington DC, and am currently in Abu Dhabi teaching science to 12 year-old girls. CK12 is a revolutionary website. Not only can I access high-quality science literature, but I ca
Amber W.
it helped me in class
Hannah
Access to awesome texts for my students!
Emma
happy birthday
Jaun C.
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
At a time when we were not able to continue paying for private instructions, we found this site and it was our salvation. We valued the set up and the freedom it presented to design the best course of action for 8th grade studies. Now moving on into 9th grade studies and more diligent record keeping, we are continuing on at the 9th grade level.
James L.
Finding material for my chemistry students, and also creating my own online text.
Kim W.
CK-12 has helped my students and I a great deal. First, I would to say my students who use it, love it and have also told me that they have learned how to use to their advantage for their other subjects. Secondly, I love it too. I like that it has great s
Felicia J.
It has been a great resource to use. I believe it benefits my students more than me, but it is certainly been a useful tool-resource.
Jim K.