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 is great for note taking
Emma M.
it was awesome!!!!!!!!!!!!!!!!!It really helped me with science.
Emma E.
It helped me earn biology and life science better.
Emma D.
CK-12 helped me finally start to get good at math! I was struggling for years, but homeschooled my sophomore year, I started getting a grip and I am now about to start my Senior year. Now I can graduate with my friends and go to college to be an EMT like I've wanted to for many years! Thank you!
Emily
It's a cool way for my teacher to teach Earth Science.
Emily
CK-12 has helped me a lot in Biology. I has great articles and questions to help me get better grades in an Honors Biology class
Emilia D.
it has help me in all kinds of ways i will always use this site thanks for everything love you guys so much
Emanuyel
I get all my math assignments done here and learned alot !
Emanuel C.
It helped me pass my pre-k math class
Elliott
It taught me a lot about science and how many things are.
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.