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
CK12 has helped me a lot with learning about things that I never knew. This includes about Science.
Takyia Lacy
It really helps me get all my glass work done SO THANKS a lot and happy 10 ANNIVERSARY!!!!!!!!!!!!!!!!!!!!!!!!!!!
Dalton A
CK-12 has helped me learned great things that I have never learned before, and I thanks you for that. I believe that they have always made learning easier for me.
Evangeline Conachan
CK-12 has gave me more knowledge about science.
Naomi F
THANKS. Its helped med study for important tests, and its been a really helpful resource for me.
Jorge
Ck-12 helped me with math by showing and teaching me about and , Writing and Evaluating Algebraic Expressions.
Alaena.Reinersman
CK-12 has helped with great resources.
Vince Deblase
I learned things that my teacher could not help me with.
Kai Haggen
It has helped me keep my grades up last semester and hopefully this semester!
Torri Walker
CK-12 has helped me with research for science.
Haley
it has helped in understanding some aspects of biology
Okeke John Joseph
It is a great web for kids
Tram
You are awesome. Thank you.
Elizabeth Aguilar
Thank you for the help! They have helped me so much with my math classes and I know they will continue! Thank you cK-12
Zori D.
Ck-12 has helped me alot! Im a poor student can barely afford textbooks etc but problems and tutorials and help found on here has helped me pass most of my classes together with the help of the local library. Thank you!
J
Helped me learn
Aidan
it has help me with my school and ect...
Bethy Pretty
CK12 is really awesome, thank you
Zach Diego
it has helped me understand the complexity of science and break it down for me to comprehend it a whole lot better.
Ivorie Snow
ck-12 ha helped me by making it posible for me to learn about energy and all sorts of scientific stuff. i love ck-12
Comments from Educators
By making me a more competent teacher.
Jayson R.
happy birthday
Jaun C.
thanks u have helped me a lot ..just add more materials especially on geosciences
Jaspin K.
Hello ck-12, congratulations on your 10th anniversary! This is my first time on the site so i can't really give you a good feedback yet , but rest assured i am thankful for being able to find the site.
Jasper P.
I am a special education teacher, I use information to help kids understand concepts in the biology class.
Jason V.
It has helped me support my students with on so many levels.
Jason P.
Absolutely an amazing experience. I love that I can customize the textbooks to include what I believe is relevant in the order that I feel is a good flow. Thank you for saving my district so much money!
Jason W.
CK-12 has become a weekly extension activity for my middle school science students.
Jason B.
classroom assignments for Night by Elie Weisel
Janet R.
You have flex books which have been a great tool for my students to read and watch videoclips on Ecology. I look forward to using your flex books on Evolution.
Janet G.
CK12 is a fantastic FREE resource that is comprehensive and engaging. I want my students to learn to look up information and use Internet resources and CK12 provides the opportunity for them to look things up without my help. The readings are clear and I
Jan
Provides plenty of well structured lessons
Janet
The plix and other resources have been very helpful in allowing me to address different types of learners.
James S.
I am using CK-12 in both my chemistry and physics classes this year which is my 37th year in teaching. When I tell people I use CK12 to make customizable free electronic textbooks, people are very surprised that it is possible.
James P.
many teaching resources are getting this site for me
Jaleesa
At a time when we were not able to continue paying for private instructions, we found this site and it was our salvation. We valued the set up and the freedom it presented to design the best course of action for 8th grade studies. Now moving on into 9th grade studies and more diligent record keeping, we are continuing on at the 9th grade level.
James L.
What a great resource. The flex books are excellent by themselves , but with the ability to edit them, they are fantastic. I especially appreciate the differentiated levels of the flex books. I use the middle school book for my 8th grade prep students
James G.
Teaching
Jacqueline S.
We use cK-12 for our high school Science and math curriculums and the students love and the teachers find it easy to use and an enhancement over traditional textbooks.
Jack
First year using completely digital books in 7th science thanks to you! Awesome!
J Daniels