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
Help me a lot Thanks!!!!!
Yoselin
u helped me with my math promblems
Taishanna Davis
CK-12 helped me with science
Sawyer
They have provided the ability to learn more things in new ways.
Blake Godbold
hello you just helped me with my science project thank you
Raeden
it helped me get better at math and helped me raise my math grade from a 45 to a 89
Faruk
CK-12 has helped me by allowing me to learn more things every day. I think that CK-12 is the right site for me and i love this site.
Jonvion Bryant
you helped me with science grade
Faith
This is a very powerful tool to understand better the base of a lot of knowledge
Jorge R
Helped me learn stuff
Whopper Jr
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
CK-12 has gave me more knowledge about science.
Naomi F
This has helped me study for tests and has helped me in science class.
Haleigh Johnson
CK-12 helped me out in areas that some of my teachers do not explain as efficiently.
Ella
It has helped me with my math .
Natalia Keaton
you guys have helped me with learning new things
Betty
You guys helped me understand my material, Mostly Science, and helped me finish my tests with a fair amount of ease.
Idris Donovan Anderson
Learning new information.
Comments from Educators
Love the free online science textbooks
Kate O.
I have just been assigned to teach 7th and 8th grade Science.
Lynn J.
Thanks to CK12.ORG, my students enjoy the assignments and the activities created by ck12. Thank you.
Anna M.
it provides my science corrculum
Joshua F.
CK-12 has given my kids a great foundation of knowledge in the subject they are studying, while allowing me the opportunity to add additional information and videos if needed.
Denise R.
I began homeschooling and immediately went into panic mode, but after another homeschooling mother recommended this site I was immediately put at ease.
Elizabeth S.
cK-12 has helped me teach my child on several subjects. It is a fantastic resource weather you homeschool or not.
Laura G.
CK-12 helps out on 2 of my subjects and it makes learning easy. And, some of the videos are funny and it makes learning fun too. I love CK-12 because I met some people who work for it and they were so nice. CK-12 is awesome, and I think it should never be
Lillian B.
CK12 was a great resource for my middle school students because they were preloaded on their devices. Our internet connections were spotty at best in my classroom and CK12 provided a stable platform for me to teach and students to learn.
Jennifer
I have used it with Google classroom. When introducing a unit, I will have students view a video, take notes and follow-up with a discussion of what they learned. Students will complete some practice on the concept.
Karen E.
lol idk just joined ttyl
Fredrick W.
very good after all it is a helpful site to use.
Arianna B.
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.
By making me a more competent teacher.
Jayson R.
Hello ck-12, congratulations on your 10th anniversary! This is my first time on the site so i can't really give you a good feedback yet , but rest assured i am thankful for being able to find the site.
Jasper P.
Well, im a teacher and a instructor in Mexico, and my students use this pages too much
Julio R.
ck-12 is helping me design my own text book for students. It is great that I can incorporate desmos activities and hands on learning.
Kande W.
Help my students learn in their Science class.
John B.