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
Made me smarter
Jordyn Horne
Hello,CK-12! As a non-native English speaker,I have been reading CK-12 textbooks for learning not only STEM but also English. I really appreciate your hard work to provide such a good learning platform for so long. Wish you all happiness,health and prosper
Weilai
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 has helped me by giving me easy access to textbooks I need for my school work.
Faith Brandt
Very helpful gave me a lot of information that i need in my study
Wiam Alqaderi
It is a great web for kids
Tram
You have helped me become a better student.
Kaitlyn D
Helped me in social studies.
Paul Trumpore
I want to thank you guys for everything you guys have done. You make things easy to access and have offered many helpful things within my classes.
Adam Bradley
It has helped me learn science. In science class we always use this site. My teacher loves this site. Thanks for everything.
Jordan
Ck-12 helps me in science because, they use this website for teaching us. Its working!!!!
Not Telling
i dont know but it has helped me learn somewhat in science...
Paulina
CK has helped me a lot with my journey in knowledge
Aiden Hatfield
it helps me in doing my homeworks and searching for the things that makes me curious
Nur Logan
It really helps advance learning and knowledge for senior high school
Normalina
It has helped me learn my 2 worst subject and it is now one of my favorite subjects all because of cK-12
Quinn Ames
CK12 has helped me through many tough times. It's all because of ck12 that I could get back on track in maths class and I could get a perfect score. It has been immensely helpful. Thank you so much.
Taiba Abid
it helped me in my science class
Comments from Educators
CK 12 was useful as I could download the text books for use with me students. Now I cannot do that anymore. Congratulations on your 10'th anniversary, you have gone from useful to useless for me.
C Smith
wonderful resource for my homeschoolers
Easton
It's easy to create assignments for my students and I love that they don't discriminate the fact that I homeschool my children and use this.I hope in the future they have more english to use.Thank you.
Laurisa N.
Thanks for making your lessons available! It helps a lot as a supplement of my lesson.
Cicelia A.
CK-12 has been helping us teach our children several subjects. Thank you #ck12foundation .
Amber
My search for free online study materials,concept teaching videos and acquiring extra knowledge and concept quizzes ended after signing up at CK-12.Its really great work that CK-12 is doing,helping knowledge victims free of cost.
Ankit R.
sience
Faith A.
WOW! I just absolutely can not express so helpful CK-12 has been in my science teaching. We are moving away from our old standards and adopting NGSS. We currently do not have a textbook to use with the students and CK-12 has been a life saver! Thank you!
Lisa N.
I am sincerely grateful to anyone out there who takes the time to provide kids with an education when they wouldn't have been able to get it in another way. CK-12 has definitely been a very helpful site, one that is fun, motivational, and most importantly
Alexis
Love the ability to customize lessons!
dabourd
I love using your textbooks for my classroom. Ties in tech and provides an inexpensive alternative.
Andrea M.
CK-12 makes my life easier in terms of extra activities for my students to reinforce what is being discovered in Science.
Álvaro E.
I use it during my lectures for Introductory Physics courses at the university. Helps reinforcing ideas and visualize sometimes quite complicated concepts.
Ania
As a homeschooling mom, it's always a struggle to find comprehensive material that is logical and easy to understand. That is not guaranteed even when money is spent. This is science based with great links and supportive data.
DeeDee
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.
CK-12 helped me by allowing me to access supplemental science curriculum for my students. It assisted me in the differentiation of instruction for my student body.
Anne B.
You have helped me create quick and modifiable text for my students!
Alexa C.