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
It has help me get better at science
Dante
I found CK-12 when I couldn't find the answers for my homework. Best thing that could have happened, even if my teacher introduced me to it in a later time. The content is amazing! It's helped alot throught the school semester.
Daphne
this program helped me that education is important.
Danny B.
It helped me understand how to work with ratios.
Dannete R.
helping me with my work when i mostly needed it,, Thanks so much.
Danielle
Congrats CK12! I have only started using it, but it has helped me greatly. Keep up the wonderful work.
Daniel C.
this website gives you great help in math and science
Angelea P.
It has helped me learn different concepts of Earth Science.
Daniel C.
In the past, ck-12 has been a trustworthy and colorful resource that I could always rely on if I was struggling with a concept in class. In geometry this year, we're actually required to use it, and it certainly helps me to learn concepts well.
Cam
It has given me the chance to learn more about what I need. #CK-12 is awesome.
Comments from Educators
Love the free online science textbooks
Kate O.
Thank you for providing such a comprehensive and high quality library of resources! I love the customizable textbooks. Thank you!
Kate
CK-12 is a terrific resource. I'm the science chair at an independent school in Los Angeles. We have been moving away from physical texts for a while and CK-12 is the best online alternative in our opinion. Students enjoy the varied learning formats and teachers appreciate the class management options. Happy Birthday CK-12!!!!
Karl F.
CK-12 has been incredible. I've been using it to homeschool my middle-schooler for two years now, and it is unbeatable.
Kasheia
I like to have well rounded lessons and your lessons are easy to use on the iPad.
Karen S.
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.
I teach at-risk troubled students in a Disciplinary Alternative Education Program setting. Most of my Students have gaps in their Mathematical Foundation. CK12.org helps eliminate those gaps. A strong Mathematical foundation is required in many technic
Karen
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.
Well, im a teacher and a instructor in Mexico, and my students use this pages too much
Julio R.
I just found this website yesterday, and I think that it's awesome! I can't wait to use this all the time in my classroom! Thanks!!
Julie B.