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
Great resource to learn the most complicated topics in simple ways.
Sean M.
I really understand things. Thank you for making this site.
Sam
this program is awesome. congratulation on your 10th anniversary
Salome W.
cK-12 has helped me to practice questions for biology. Happy 10th Anniversary!!
Sally
It has helped me tremendously! I really appreciate using CK-12 because it helps me with my tutoring lessons.
Salima W.
THANK YOU Ck-12 . You made my dreams come true because due to you i stated leaning in a higher standard . I used to study only through books but you changed style of learning. thanking you again and wishing you on your 10th anniversary , may this organisation will reach to every child ...
Saifullah
we get an online textbook!!
Ruby
IT HELPED WITH ALL OF MY HOMEWORK!!!!!!!!!!!!!! We have our lessons on the readings and they have really helped me learn. There is an occasional grammar issue and a misspelled word but other than that the practices and all the other things are really good for a 6th grade children's science class!! By the way HAPPY ANNIVERSARY!!!!!!!!!!!!!!!
Sadie
I love the life science section and the practice really helps me study for tests and worksheets so now science is a breeze!
Rowan W.
Well ck-12 has helped me by a lot by helping me study with the usefull resources.
Comments from Educators
Me ha ayudado a planear clases más interesantes para mis estudiantes.
Danelly M.
An invaluable resource for learning materials.
Dan P.
I learned about CK-12 this year from the previous science teacher in my position at my new school. I have used CK-12 resources for all three of the subjects that I teach and my students just recently told me they would rather use CK-12 than Khan Academy.
Dan M.
ck12 is outstanding with providing information, testing material and questions for students to improve their learning in biology. thank you
Cyril F.
CK-12 is an amazing site to use to help students understand topics better, and it has helped me through my earth space honors class. Thanks so much!
Dalila Z.
Dairy D.
Love the ability to customize lessons!
dabourd
This cite allows me to provide practice for my students that isn't always just another worksheet. We all like the immediate feedback that this site provides.
Daire M.
I use ck-12 in my classroom. The school does not provide textbooks for the students, so I use the textbooks from ck-12.org for all of my classes except for AP Physics.
Cynthia B.
There have been available lessons that have helped my students have a better understanding of the material.
D. Ferrell