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
You folks have done a great job getting the mental pictures of experts into the minds of novices. What a nice body of work!
Gregg S.
it helped me a lot. several lessons gave me ideas on how to attack and execute my lessons.
Gigi G.
I have found CK-12 a helpful resource for enriching my high shcool biology classes.
Beth A.
ck-12 helped me to build my lesson plans.
kaur
Dairy D.
I am a Science Olympiad coach for Anatomy and Physiology at a middle school. This is our first year as a team, so I have spent hours searching for materials. Your site offers just what we need.
Kippi F.
It will help me prepare my students also see where they are in their learning.
Angela
CK-12 has helped me by providing resources to support and reinforce lessons for my middle school students
Elaine H.
I am a newbie here but CK-12 has helped me a lot in teaching my students. Thank you, CK-12!
Helena K.
I love science and the online books are so easy to access! I love the ck-12 website home page thing! every thing is so well organized! I just love ck-12!
Isabella
I learned about CK-12 this year from the previous science teacher in my position at my new school. I have used CK-12 resources for all three of the subjects that I teach and my students just recently told me they would rather use CK-12 than Khan Academy.
Dan M.
CK-12 has helped liberate my classes from a traditional textbook. Now my students can read the content they need at their own level.
Donald K.
ck 12 is the only app which i get that is fully free second thing i m a cbse board student and the books available on ck 12 have material that i cannot get even in best refrences avalaible in my city.............. i prepared foooooor classssss 10 board from i and achieved 10 cgpa
Akhil
very good after all it is a helpful site to use.
Arianna B.
I first used the CK12.org webpage in conjunction with traditional style biology ibook four years ago after going to a technology training. Now I have open sourced a regular biology Flexboook and an honors Flexbook for use by our entire school and embedded
Chris J.
CK12 is a fantastic FREE resource that is comprehensive and engaging. I want my students to learn to look up information and use Internet resources and CK12 provides the opportunity for them to look things up without my help. The readings are clear and I
Jan
Provide great resources for teaching my scholars Algebra
Akinade S.
CK-12 helped me by allowing me to access supplemental science curriculum for my students. It assisted me in the differentiation of instruction for my student body.
Anne B.