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 helped me out in areas that some of my teachers do not explain as efficiently.
Ella
Helped me pass my classes. Very helpful!
Elishah Arnold
think through science problems
Samantha Ott
grades and help me get far in life
Quevin Hill
I've actually started taking notes because of all the real world examples in science because the info doesn't click if I don't relate. Since studying and taking notes on this site every single test I have studied for on here, I passed!
Zoe Noelle Maxwell
CK-12 has helped me learned great things that I have never learned before, and I thanks you for that. I believe that they have always made learning easier for me.
Evangeline Conachan
It has helped me learn more about science and more about reflection and light.
Serenity
Its helped me study a lot!
Alana
Learning new information.
Candice Sabrya Medley
CK has helped me a lot with my journey in knowledge
Aiden Hatfield
Thank you for providing your resources in my Chemistry class. I have learned a lot from your texts. I learned about how ionic and ternary compounds bond together.
Tony Maggio
School couldn't be the same without this website. I know I'm not the only homeschool student that feels that way. Keep up the good work
Evi
ck-12 helped me by knowin new stuff and getting to read new things on here it also helped me by useing the computer and to come on here. i like reading on ck 12 becasue it goes faster and you can read by your self also because you dont loose you spot it helps me!!! thank you so much guys
Makayla A
you helped me by helping me study for major tests
Alex J
CK-12 has helped me understand things more clearly and it is easier to pay attention to because of the videos and other different ways to teach. A textbook is hard to understand because all you see or hear is words there is no video that shows a diagram
Alex U
because you give me important facts and real facts and i can trust you guys thank you so much for that and i love this website and i would recommend this website to all my friends and thank you for giving me this chance to give my feedback
Quynterrius
Ck-12 has helped me learn 8th grade algebra
Gavin
My learning has become much better.
Comments from Educators
K-12 is still a new educational system here in the Philippines and its effectivity leads me to seek reliable resources and materials. And, indeed, CK-12 has answered my needs as an educator. Cheers, CK-12!
Christine D.
So many STEM resources at all grade levels available from ck-12!
Katy
It has helped my students learn
Kathryn
I am an italian teacher of chemistry. I like my work and new teaching strategies. Often some of my students can speak English better than italian and as I know how much important english is, I invite them to keep an english lecture on a particular topic for the whole class, including me. Your videos, tests and documents are really helpfull in this! Thank you very much
Antonietta
The drill and practice has helped my son recognize which function a math problem requires.
Marc M.
Instructional texts for students to learn curriculum standards
F Woodall
I have relied on CK-12 for simulators to help my students understand topics that are not able to be done easily in the classroom and has helped them to learn and also saved the school money!! Thank you and happy anniversary!!
Ericka O.
Looking for a better way to explain scale drawings and proportions to my special education students
Jennifer L.
An invaluable resource for learning materials.
Dan P.
Me ha ayudado a planear clases más interesantes para mis estudiantes.
Danelly M.
CK-12 has been incredible. I've been using it to homeschool my middle-schooler for two years now, and it is unbeatable.
Kasheia
Congratulations! You have done good work and helped many in their education journey. Interactive practices, instantly graded tests, and outlines and explanations, including videos and PLIXes, have helped me and my math students.
Jennifer T.
CK-12 has helped us with our homeschooling and letting my daughter move at her own pace.
Leigh
I love using the free resources as a literacy component in my science classroom. Many topics that I teach can be found at Ck-12 and the content is both accurate and engaging!
Emily I.
Love the free online science textbooks
Kate O.
I use Ck-12 to find resources for my high school Significant Support Needs class.
Kim C.
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.
In the digital age I find have a paper textbook for a dynamic science world limiting and not budget wise. Thank you for making this service available! I find it very useful as a resource in my classroom.
Charles R.