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
this cite helps me learn science
Vivica F.
Ck-12 has helped me understand some of the things that are happening in my chemistry pre-ap class. Without Ck-12 I do not think that I would be doing well in class. Thank you and keep up the great work.
Vanessa R.
CK-12 has helped me learn and grow as a young teen.
Tyler G.
Ck-12 has been an amazing free educational site. I've learned so much from this site yet explored so little of it's content. Thank you Ck-12!
Tyler G.
CK-12 has helped me through biology when I didn't understand it, and it honestly helped me pass
Tyler F.
It has had helped me with my sience stuff in junior high thx
Tyler B.
It tells me ll about the subjects I love.
Tyler
it helped me study for my tests and get better grades.
Tyler
You have helped me with my work
Tyler
it has helped me by getting me the resources that i need for school.
Comments from Educators
I have no textbooks to use in my classroom not even old ones to use as reference material for the students. Part of the educational standards is for students to be able to read content at grade level. How do you do this without books? CK12.org has been the provider of books and practice material. I am using it in all of my science classes except for AP Physics as those students are required to purchase a college textbook. Thank you CK12! Without your support and online material my job would be extremely difficult. Congratulations on 10 years of educational support.
Cynthia B.
This website has awesome material to help my students to understand the world around them.
Cynthia
Ck-12 has brought science to life in my classroom with online videos, challenging reading and built in assessments to help my students know what they are learning.
Courtney M.
Making connections between real-life concepts and applications with students!
Cottey G.
I have used ck-12 science as my children's home school science curriculum for the past 2 years.
Cornella J.
kK-12 have helped me to find many activities and links to use in my class
Consuelo S.
given ability to work with multiple skill levels in one classroom
Corinna B.
I love to use ck12 on and off campus. and i love all the free resources
Cooper L.
I can barely remember how I used to teach with an old dusty textbook. I have kept those around, but now I use them in a special activity: I have students rip out pages to underscore the fact that science is constantly changing. Traditional text, especially in science, are obsolete before they even ship. Needless to say, they are also very expensive. I have also turned several colleagues onto CK12 and now your awesome products are used in several grades here.
Colin H.
I love your online book and resources! I have been using your online book with my middle school students for 3 years and I love it. Thank you for providing excellent materials for us.
Connie Jo E.