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 help me with my school and ect...
Bethy Pretty
It has helped me because it gives you examples and helps you understand the work you are doing. Thank you ck-12
Lauren C
I love this site
Latonya Herbert
It was great because so I can send messages to my teacher and have free stuff.............
Tammy Chen
i haven't failed science thx to you
Matthew
This site has helped me learn about new and different things that I hadn't known before! So, thank you!
Maeve
CK12 is the best online learning source ever.
Mason Ramos
i loveeeeeeeeeeeeeeeeeeeeeeeeeeeeee ck-12 so much too bad i cant use it in high school next year
Latina Harris
It has helped me learn things I have never even know.
Elizabeth H
you help me learn plant pollination and about biology. thank you and i love you
Severa Swiger
I am a biology student so it helps me a lot when doing assignment
Ikhmal Syuqkin Bin Ismail
Helped me pass college statistics
Torronce
I can get my school work done in a fun way.
Imoni
nesecito que me ayuden con una tarea de geometria
Yuleni Meisa
It has helped me with all subjects over the past 1 to 2 years.
Samarj Clifton
You helped me a lot with science
Abel
Congrats on 10th anniversary and it has made me smart!:D
Gabrielle T
You made me get a 75 on a test
Comments from Educators
I am a school admin. and I am interested in learning more about Flex books.
Leslie
Providing lesson resources.
Brittany S.
CK-12 is a great way for home-schooling.
David
It brings new ideas and learning strategies to the table.
Faith W.
It has helped me with very fun and creative activities to deliver meaningful lesson to students of different learning abilities.
Isela
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.
I use ck-12 books in my science classes, especially in Advanced Biology. Thanks so much for the awesome resources!!
Lisa J.
I love the interactive links in the e-book. I have used the resource for reviews and absent students.
Katy W.
teaching
bryant
CK-12 has become a weekly extension activity for my middle school science students.
Jason B.
Teaching
Jacqueline S.
I am an elementary school teacher and this learning center has advanced my students so much. It is very helpful in the curriculum and overall is a great brain trainer for students k-12
Cindy M.
I was able to create worksheet practice for my students.The videos available were also helpful in helping students review concepts
Lotoya G.
It has helped me with transitioning in a block schedule to incorporate NGSS lesson.
Laurie R.
Dairy D.
We use cK-12 for our high school Science and math curriculums and the students love and the teachers find it easy to use and an enhancement over traditional textbooks.
Jack
Thankyou thankyou thankyou very much for providing these resources for free. ck-12.org is very great resource for students it is very helpful in schools and out of schools for self study.
Biswajit A.
I shared this resource with my students
Carmen M.