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
This website helped me in every way possible. Will honestly use this
Abby A
Looking to find a great inquiry lesson on polarity...thank you!
Seun Anderson
it help me with a lot of stuff that i thought i coulden't do myself
Dameon
Ck-12 has helped me learn about science
Aiden Nelson
CK-12 has helped me with my homework and things i did not understand. Thankyou
Dajah
Got me to understand global warming
Ivan
Very helpful gave me a lot of information that i need in my study
Wiam Alqaderi
It has improved me thank you so much for this site
Gabrielle Glorianna Bobo
cK12 has helped me understand the concepts my textbook teaches me in a more creative way. I like the pictures and comparisons that are given when explaining something.
Camile Ingram
u help me improve in all my subjects in school
Seth
Thank you for the help! They have helped me so much with my math classes and I know they will continue! Thank you cK-12
Zori D.
CK-12 has helped me breeze through geometry in a private school which did not offer the class. The ability to do everything on my own gave my teacher the time he needed to teach his other classes and helped me earn my high school credit for when I advance
James Rochon
THANKS. Its helped med study for important tests, and its been a really helpful resource for me.
Jorge
It helps me learn stuff i didnt know.
Dallon Spendlove
Help me a lot Thanks!!!!!
Yoselin
Wow! Fantastic site. It is really help to us. Hands Up to you effective work.
Maha
it has educated me very well , and helped me get into the the 9th grade.
Late'Ya Matthews
CK-12 has helped me understand math and science more.
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.