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 helped me to learn and understand Math better.
Caitlin
CK-12 has helped me in science a lot, i have learned a lot through the practices.
Calyn B.
Ive used this site for about 2 years now. It has helped me throughout my highschool years. Im in 10th rightnow but ill continue to use this site for all my biology classes and chemistry . Ive used this to get answers on my assignments. To to able to unde
Asia E.
It helped me learn more about the topic I was studying.
Ashton F.
they helped me be smarter
Ashley
it made science fun and easier to learn.
Artasia
Ck-12 has allowed me to not have to lug a textbook to and from school, and still get relevant and interesting information about science.
Arrin
Ck-12 has helped me keep up in class when I am having trouble and do homework that my teacher assigns us from the website, I don't know what I'd do without Ck-12.
Arlene V.
I always interested in learning new things. Even being a University student, I use CK-12 to keep learning.
Arif A.
this website is awesome i use it every day
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.