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
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.
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.
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
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.
It has helped me find out more about molecules and cells along with animals and plants in my class and helped me to pass my tests and study.
Zoie
I've actually started taking notes because of all the real world examples in science because the info doesn't click if I don't relate. Since studying and taking notes on this site every single test I have studied for on here, I passed!
Zoe M.
I need it for my homework, so it helped me pass math.
Comments from Educators
CK12.org has given me an online text and teaching materials that are NGSS aligned. This has enabled me to teach to the standards even though our school does not have a physical textbook. This has been such a lifesaver as a junior high science teacher!
Anne K.
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.
Thanks to CK12.ORG, my students enjoy the assignments and the activities created by ck12. Thank you.
Anna M.
Awesome resource used for student teaching.
Ann
My search for free online study materials,concept teaching videos and acquiring extra knowledge and concept quizzes ended after signing up at CK-12.Its really great work that CK-12 is doing,helping knowledge victims free of cost.
Ankit R.
I use it during my lectures for Introductory Physics courses at the university. Helps reinforcing ideas and visualize sometimes quite complicated concepts.
Ania
Getting new resources is always a struggle. Our district has really been focusing on technology. New teaching materials hasn't been high on the list. Thanks to CK-12 I have the text resource that I need being used in a way my students enjoy!
Angenette S.
It will help me prepare my students also see where they are in their learning.
Angela
Thank you for helping me home school.
Anel
You Helps us to thrive! We want to say you thank you!
Andrew