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
I'm usually great with math but I always struggled with division and ck-12 has helped me concur that issue in his enlightened my math life.
Akinle Armand
I am a biology student so it helps me a lot when doing assignment
Ikhmal Syuqkin Bin Ismail
you teach me to never give up
Lauren
They have provided the ability to learn more things in new ways.
Blake Godbold
CK-12 has helped me understand my homework a lot more.
Fafnir
it has helped me alot with math and it is a good way to learn
Aj W
It helped me study for some tests that I got 100 on
Garret
CK-12 has helped me so much in school, whether for the basis of a topic or extra-credit work. Happy Anniversary, and keep up the great work!
Ellie
CK-12 has helped me with tests, homework, and learning different subjects.
Serenity Guerra
I've only been using this site for roughly a week but in that week I have actually been able to complete and understand my homework and I have a test soon on what I've been studying here and i have no doubt I will get a amazing grade on it. I'm so thankful on the vast number of topics there is as well I shared this site with my friend as well and it definitely helped their grades as well.
Racheal
Got me to understand global warming
Ivan
Thanks for all the help with homework!!!!
Lainey Shio
it has helped me get a better edjucation the teachers are tough sometimes but i think it is better for me
Serena Woodward
It has made me understand science more! Thanks.
Wilber Alexander Flores
It helped me help people and help the world! yayy!!!!!
Lam Vo
CK-12 has helped me with a lot in biology. Happy Birthday CK-12!!!
Israel
I LOVE CK12, always educating me in a fun and easy to understand style
Ola
It has helped me do online geometry.
Patrick
You are very helpful.
Akiya Sharp
It helps me understand and learn things better.
Comments from Educators
I LOVE YOU guys thank u very much i appreciate your efforts for helping students to learn their subjects.
Biswajit
This website was a great thing for us to us because it help us to do many of our assignments. The class and I really appreciate this website and what it has provided for us. My class and I have a new assignment to do and we use cK-12 because it makes us do different things on it to provide us and them with different information they need.
Billy S.
Thankyou thankyou thankyou very much for providing these resources for free. ck-12.org is very great resource for students it is very helpful in schools and out of schools for self study.
Biswajit A.
It is a extremely propitious and handy website.It helped me a lot for giving a finishing touch for my examination.
Bhawesh K.
You helped our classroom by supporting our lessons!!
Bethany H.
I have improved the labs for my online physical science class.
Beth R.
Live saver! Ck-12 has been a wonderful resource for me since I am teaching a curriculum that I have not taught before. Great asset.
Belinda C.
Weekly quizzes and online practice. Also use the flexbook for practice for HW.
Berenice
I have found CK-12 a helpful resource for enriching my high shcool biology classes.
Beth A.
With School and sceince
Basya V.
CK-12 has helped my students access current science content as we implement the Next Generation Science Standards.
Barbara W.
I'm a first year teacher in an impoverished school district. Having virtual tools is the best way to close the achievement gap between my district and well-funded schools. Thank you!
Barbara F.
Hi! I have used Ck-12 to supplement the resources provided by my school district for years. Eventually, CK-12 became a resource that is recommended by my school district. Congrats and best wishes as you celebrate your 10th anniversary. Also, thank you!
BC
Amazing books for my students at no cost. Thanks!
Aurora
plan lessons
Artemis B.
CK-12 is an amazing resource to teach my students! I love that I can collage material and personalize material to suite each of my classes. Thank you for all that you've done and please keep up the great work!
Arpit
very good after all it is a helpful site to use.
Arianna B.
CK helps me on my practice teaching experiences
Ariane
Ck-12 has really helped me pass my praxis test and it helps me daily with my classroom teaching my students to expand their mind.
April R.
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