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 has been a real eye opener and has helped me through my high school years
Mark T.
They helped me very well. I hope that all topics will have videos. Thank you so much.
Mark I.
it has made homework fun
Mark B.
ck 12 has helped me looking for the best topic for me to learn all learning areas.
Marjonie B.
It has helped me to better understand the topics we learn in science class.
Kylie J.
it helped me with science
Marius C.
It has made me understand my classes better.
Kyleigh M.
cK-12 has helped me a lot. I have all A's in my classes because of this website and know much more then I did before cK-12. Thank You!!! Happy 10th anniversary.
Kieahna
I understand math problem more when I practice them independently.
Kierra S.
This site has helped me, with my biology, projects, understandment of learning more ways to solve work. Happy anniversary.
Comments from Educators
I am a special education teacher, I use information to help kids understand concepts in the biology class.
Jason W.
It has helped me support my students with on so many levels.
Jason P.
CK-12 has become a weekly extension activity for my middle school science students.
Jason B.
classroom assignments for Night by Elie Weisel
Janet R.
You have flex books which have been a great tool for my students to read and watch videoclips on Ecology. I look forward to using your flex books on Evolution.
Janet G.
Provides plenty of well structured lessons
Janet
CK12 is a fantastic FREE resource that is comprehensive and engaging. I want my students to learn to look up information and use Internet resources and CK12 provides the opportunity for them to look things up without my help. The readings are clear and I
Jan
The plix and other resources have been very helpful in allowing me to address different types of learners.
James S.
I am using CK-12 in both my chemistry and physics classes this year which is my 37th year in teaching. When I tell people I use CK12 to make customizable free electronic textbooks, people are very surprised that it is possible.
James P.
What a great resource. The flex books are excellent by themselves , but with the ability to edit them, they are fantastic. I especially appreciate the differentiated levels of the flex books. I use the middle school book for my 8th grade prep students
James G.