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 lets me learn lessons at my own pace and learn from my mistakes so I really like that.
Flor F.
I love how well the examples are explained and i couldn't do my homework without it. :0
Fernanda
CK-12 has helped me memorize lots of new scientific words and helped me become better and smarter at paying close attention in what I am reading. I also like how it doesn't take a lot of time to complete a task. It only takes me about 15 minutes to comple
Fernando
cK-12 has been part of my experience as student and has been helping me to discover in a different way the sciences
Estefany V.
i like using ck 12 because it helps me learn alot.
Felsiha, Daquan
Ck12 has helped me learn how to find keywords in the question and match it with the answer
Ervin M.
It has helped me improve my Science skills, and continues to help me more often as I prepare for my AP Exams. Happy 10th Anniversary!!!
Esperant K.
helped me learn and understand more.
Emmalee
Happy 10th anniversary! Great job so far, you have helped me so much because you are online so I can access you anywhere!
Emma T.
Ck12 helped me pass my science class this year. #youlit
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