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
My class has learned so much from ck 12, its easy, resourceful, and all in one place. Thank you so much!
Alex J.
Provide great resources for teaching my scholars Algebra
Akinade S.
ck 12 is the only app which i get that is fully free second thing i m a cbse board student and the books available on ck 12 have material that i cannot get even in best refrences avalaible in my city.............. i prepared foooooor classssss 10 board from i and achieved 10 cgpa
Akhil
It has helped me in revising basic concepts before teaching a class. I have used visual representations in my classrooms.
Ajmal R.
I enjoyed using cK-12. I is a good website for biology. I recommend it to any teacher or student dealing with biology. It is very easy to use, covers all topics in biology in the utmost simple and fulfilling way.
Ahmed E.
I enjoy reviewing our lessons and adapting them with my text. It gives extra text for my students to review.
Adrienne S.
cK-12 has helped me with supplemental learning for my students in Science 8th grade and HS Chemistry class. It's great since the cK-12 lessons teach the same scientific vocabulary that are in my standards. Thank you for making education free, accessible and easy to accomplish on a smart phone. You are speaking the students' language!
Adam
CK-12 is such a great help for me as a student teacher, it gives me the information that i need to know for my everyday teaching-learning experience. CK-12 is awesome!
Adrian D.
preparing for physics lessons
Adeoye
CK-12 has been a great resource for me! The Fourth grade social studies curriculum was new to me last year, so I used ck-12 as my guide! Thanks CK-12 for your awesome free resources!!
Adrienne K.