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 has helped me because it gives you examples and helps you understand the work you are doing. Thank you ck-12
Lauren C
It has helped me with my math .
Natalia Keaton
it helped me learn science
Aidan Schettino
It help me learn with greater hope and effectively materials and references books
Abdalla Khatib Ali
Hello, I love cK-12. cK-12 helped me with everything.It explains the topic easy. Also it is easy to understand the topic
Varada
Congratulation on turning 10 i'm in the 10th grade I go to Constitution High Philadelphia, PA I just want to say I have a hard time in math and your website helped me study and it even helps me practice some other skills that im not that good in
Makala Jackson
Help me a lot Thanks!!!!!
Yoselin
I am a student, currently getting my Masters in Special Education and I have found that the resources available at ck-12 have inspired me and stimulated a fresh approach to teaching and learning, particularly for kids with special needs and for kids needing enrichment resources.
Patty Adams
To better understand nature.
Abraham Bernal
This website has helped me to develop a love of knowledge in a fun yet challenging manner.
Mateo
Very useful course materials
Aj P
i have learned thins i havent learned before
Mason Vonwert
it helped me how i can search anything i wanted to search and it was very easy to do unlike all the other pages i used
Biannca Bryant
cK-12 helped me get through my high school midterm without any problem, It was easy to study and quiz myself using this site
Garrett Keslar
happy anniversary. ck-12 had helped me, although I don't come to the website regularly. But thanks to ck-12. happy anniversary once again, hurray!!!
Ifedunjoledo U
ck-12 has helped me a lot to improve my grades
Fatima V
you helped me so much thank you
Tkeyuoyt
CK-12 Provides excellent learning tools and essentials and allows me to access it online for free.
Sean Finn
Ck12 helped me because the videos and reading brakes it down in a way i can understand my lessons! Than you c12k for everything
Tamarah
its helping me in doing homework.
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