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
it has helped me alot during class. it was better than a book to learn out of.
Serenity W
Ck-12 helped me understand cell structure.
Mattea
nesecito que me ayuden con una tarea de geometria
Yuleni Meisa
It's a great way to learn about science and other subjects. It has great projects and it's probably my favorite thing to do in Science.
Aaron Dickerson
CK-12 has helped me by finding anything that needed for me to succeed in school.
Toma
It has helped me to be able to learn about what we have done in Chemistry, and tests me on what I know.
Dana Mcswain
it helped me in my science class
Ja'Crispy
this has helped me throughout my science grade. SO THANK YOU!!!!!!!
Careena
CK-12 has helped me in mny ways. I use it as a workbook in class, and a study tool at home. THANK YOU CK-12
Rachael Z
It helps me get my science done
Ivory Ray
I am a home schooled student and ck-12 is one of my favorite online resources. I can't wait to see what the next ten years holds for ck-12. Keep up the good work. Thank you.
Kaitlyn
It really helps me get all my glass work done SO THANKS a lot and happy 10 ANNIVERSARY!!!!!!!!!!!!!!!!!!!!!!!!!!!
Dalton A
Helped me learn
Aidan
CK-12 has helped me learn the important facts about things I didin't know. It is a great online source to help out with questions you arent sure about.
Pauline
i am home schooled and ck 12 has really helped me with my studies
Kaitlyn M
It helped me study for my science mid term exam.Thanks to ck12 I have got a full 100 on my science mid-term! Thank you ck12!
Vinnie
I love this thing so much because it helps me to study for my upcoming quizes
Bianca Rivera
It helped me understand the cell theory
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.