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
Helped me pass college statistics
Torronce
cK12 helped me with biology and some other subjects. Keep up the good work. Happy 10 anniversary!!! I am going to keep on using this site for so much more.
Haleigh Dobson
i can now tell the difference between smooth,striated and cardiac muscles
Takalani
CK-12 has helped me in preparing for my science tests, projects, and being a helpful resource for physics and chemistry.
Blade Runner
I want to thank you guys for everything you guys have done. You make things easy to access and have offered many helpful things within my classes.
Adam Bradley
Helped me learn biology
Tahliek
Just learning about Interdisciplinary units
Tracey Bussell
necesito la resolver un problema con el teorema fundamental del calculo
Natalia T
CK-12 help me by making math books and lessons available.
William Wofl
it helped me with my learning in every subject
Nashaylah
Made me smarter
Jordyn Horne
It helped me in school
Abigail
CK-12 has reinvigorated my love for knowledge and is my go to resource to practice and brush up on skills. Thanks to CK-12 I was able to relearn most of what I forgot and get back in school, thank you CK-12 I don't know what it would be like if you weren'
Ibrahin Ayubi
amazing, wowwwwwwwww
William R
You guys helped me understand my material, Mostly Science, and helped me finish my tests with a fair amount of ease.
Idris Donovan Anderson
It helps my whole class
Lamarius
I use your site both for practice while working on particular lessons in math and as a form of remediation for those who are not mastering key ideas.
Runco I M
CK-12 has really helped with my Biology course this year. I can study and understand every thing they have on each lesson. I love CK-12 sooooo much! thank you CK-12!!
Adalyhn Roberts
You have helped me get through chem Pre-AP
Blake Risler
its helping my grades get better
Comments from Educators
ck-12 helped me to build my lesson plans.
kaur
CK-12 makes my life easier in terms of extra activities for my students to reinforce what is being discovered in Science.
Álvaro E.
Love the ability to customize lessons!
dabourd
thanks my child is studing in 6th std .i want he knows all babic concept of math and science.thanks
Shobha K.
teaching
bryant
Ck12 has revolutionized the manner in which I teach. This magnificent educational asset has taken the text book out of the classroom and made learning accessible to students anywhere there is a internet connection
Michael R.
Thanks for providing free, high quality resources for kids and teachers! I love the flexible way that resources can be built.
Mark H.
In many instances, available resources are not sufficient to explain a particular problem, so it is a relief to be able to turn to cK-12 for help.
Marion N.
with my son's science project
Marianne
I am just starting to use Ck-12, so far it seems like a great resource for homeschooling my daughters.
Margaret B.
I use it for Credit Recovery Program. My students like it!
Maria
happy 10th anniversiry.
Margaret
love the worksheets
Marcie C.
The drill and practice has helped my son recognize which function a math problem requires.
Marc M.
to edcuate lower class student
Manish
Improveing the motivation of my pupils
Maisa A.
I have read your biology books. With the help of ck books I am able to clear doubts of daughter and its helped me a lot. Thank you very much for CK
M.
video tutorials for lesson plans!
Macie M.
CK-12 helps me find resources necessary for teaching standards and skills that are not in my current text book. It is supplemental material and websites that help me teach!
M Hance
I have just been assigned to teach 7th and 8th grade Science.
Lynn J.