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
I've only been using this site for roughly a week but in that week I have actually been able to complete and understand my homework and I have a test soon on what I've been studying here and i have no doubt I will get a amazing grade on it. I'm so thankful on the vast number of topics there is as well I shared this site with my friend as well and it definitely helped their grades as well.
Racheal
CK-12 helps me learn more within 15-20 minutes of science than 1 month of science class. Thanks CK-12!
Aditya Parulekar
thanks i just started to use ck12, but i am proud that its bilingual so ou can get pages translate into french for my french students ,,,merci a vous ck12
Geoffroy
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 with math by showing and teaching me about and , Writing and Evaluating Algebraic Expressions.
Alaena.Reinersman
CK-12 has gave me more knowledge about science.
Naomi F
it has helped me understand the complexity of science and break it down for me to comprehend it a whole lot better.
Ivorie Snow
CK-12 has helped my grades improve
Dakota
You helped a lot with my science work. Thank you!
Elizabeth U
My teacher assigns work based off articles from your website and you always have clear answers in the readings so thanks for giving me easy 100's.
Jalyn Grace
Its a great website
Blake
It helped me learn a lot, helped during my biology classes
Ivan R Ramos
CK12 has helped me learn things my teacher and school can't provide.
Evelin
its helping my grades get better
Jamario
It has helped me in many ways, i don't have to carry any books anymore thanks to you my shoulders don't hurt anymore HAPPY BIRTHDAY CK-12
Abagayle Spears
CK-12 helped me out by finding information on here for my project
Ajahnee Hudson
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 helped me with the water cycle and many other things, too.
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.