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
Helps me with math and science and it is easy to use and fun thank you Ck - 12
Payton Spears
They have provided the ability to learn more things in new ways.
Blake Godbold
CK-12 helped me with my school work.
Addison
Ck-12 has primarily helped with science in certain ways and im glad it still exists today
Daden
CK-12 has help me by leting my do all of the things that i need to do on these cromebooks
Samatha Martin
Hi! My name is Madison Soboul but I really like the name Elizebeth so... Anyways back on topic. I think Ck-12 has helped me become a better reader because I want to beat my record and speed. I think you could add a few things though, I think you should put some games where you answer questions to beat other students in your class.
Elizebeth
Thank you cK-12! You helped me so many times to study for my chemistry and human body tests and quizzes! I can't wait till I go into astronomy and learn all about it! Thank you for everything!
Alex
CK-12 has helped me because it has taught me things about space and the earth that i maight of never had learned with a different site. Also CK-12 has done an amazing job making their material easy to use and it isnt confusing
Hailey
it helped me get better at math and helped me raise my math grade from a 45 to a 89
Faruk
Hello! You guys have helped me through my Pre-Calculus class and I don't know what I would do without you! Thank you
Abigail Franco
ck-12 ha helped me by making it posible for me to learn about energy and all sorts of scientific stuff. i love ck-12
Tony Barry
I really like the many ways of learning content. The practice, videos and articles are so current and valid.
Stephen K
ck-12 has helped me a lot to improve my grades
Fatima V
just found this random website because i was searching for places with convergent oceanic-oceanic plate boundaries
William
It helped me because its about math it can teach you alot of things math mostly and prime numer blocks pictures
Abril V
Many things that I couldn't learn anywhere else, I can learn here for free! To me that's the best I can get.
Tamaria
I have received so many materials, and i have got 100 in science test uhuyy!!
Vinia
it helped me in making me advace in my studies and in school
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.