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
Made me happy
Pau La
CK-12 has helped me by letting me learn about science and helping me with my work at school. If I didn't have this web site I never could of learned what I need to learn about the science.
Tam
Learning Algebra
Elizabeth
By providing free books on mobile phones
Aadil
They held me with my language arts so happy to h ave them with me yay!!!
Ralica
CK-12 has helped me allot in my grades i told my friends about this site they liked it and good marks because of u Ck-12 thank you.
Imad
I am terrible at math. And with cK-12 you make it a little easier to understand for me. So thank you for that!
Gabrielle E
my teacher uses it in class
Taniya Keener
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 helped me help people and help the world! yayy!!!!!
Lam Vo
I love this website
Camya Boone
You guys helped me understand my material, Mostly Science, and helped me finish my tests with a fair amount of ease.
Idris Donovan Anderson
This has helped me study for tests and has helped me in science class.
Haleigh Johnson
it helped me on everything which is awsome!!! Brah!! goz
Abdulsalam
cK-12 has helped me with various science assignments. Also, Happy Anniversary! :D
Aidan Moore
you have helped me in many ways during school hours by giving me a cite where i can study for test.
Natalie Mcginity
Hi. it works a lot espically in school to help me understand things to help me proceed in life.
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.