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 helped me a lot with science so I was wanting to challenge myself with 8th grade level.
Elliote D.
Its a great site!
Ellen
CK-12 has helped me so much in school, whether for the basis of a topic or extra-credit work. Happy Anniversary, and keep up the great work!
Ellie
Helped me pass my classes. Very helpful!
Elishah A.
It boosted me through a lot of math stuff.
Eliott
ck-12 has helped me because everyone time i go on it it helps me learn new and interesting facts.
Elijah J.
it helps with me math
Elijah
CK-12 helped me by improving my grades even though my grades are getting better and better.
Darriyuna
Helped me by watching different videos.
Daniela T.
ck 12 helped me with my learning by giving an explanation and justifying what i'm supposed to know in y grade levels. I'll happy 10th anniversary and thank you :D 5 stars
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.