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
Well ck12 has helped me become the student that I am I think.
Blake N
they made me smart and tought me everything I needed to know and they made me a faster type writer that is what they did to make me a better person
Oletha Jones
it has helped in understanding some aspects of biology
Okeke John Joseph
It helps us nurture our innate skills and talents at different fields and subjects as well as it helps us find our profession to take for the college course to take.
Queenie Casquejo
Has provided needed resources and provided us with ideas.
Patricia Aguirre
I use the Science Flex book for school!
Veronika
Understanding topics on Science
Natalie Haycraft
it helped me with my learning in every subject
Nashaylah
it helps me in doing my homeworks and searching for the things that makes me curious
Nur Logan
Helped me get good grades and get better at Biology
Tom
AMAZING FACTS AND MINI LESSON CONGRATES
Billy
Thank you very much for my education.
Careena B
it helped me how i can search anything i wanted to search and it was very easy to do unlike all the other pages i used
Biannca Bryant
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
CK12 has made my life easier when my teacher assigns notes because these notes are easy to understand.
Gavin Downey
You have very good content
Patricia
It helped me keep track of my work
Adrian Razo
its dope
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.