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
I use the Science Flex book for school!
Veronika
Got me a 100 on project
Takeyriah
you help me learn plant pollination and about biology. thank you and i love you
Severa Swiger
It has helped me understand things that I have never understood before. I really like this website
Serenity Zientek
Well ck12 has helped me become the student that I am I think.
Blake N
It is very fun and helpful
Willy
The way you guys set up the projects helps me learn and actually be interested in my classes.
Matt Fuchs
Helped me get to 7th grade
Yesenia
CK-12 has provide me with numerous resources ranging from interactive videos to simple reading materials for my teachers and students. These items and your company gives public education some highly important resources.
Willie Woodard
I like this. It helps me learn more then I used to know.
Tanaiya Bulloch
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 helps me get my science done
Ivory Ray
Very helpful gave me a lot of information that i need in my study
Wiam Alqaderi
i haven't failed science thx to you
Matthew
It helped me understand the cell theory
Adrina Stone
I can get my school work done in a fun way.
Imoni
CK-12 has been very helpful in my high school years. With the advancement of technology, I no longer have to carry heavy textbooks around school or home or worry about damaging them. CK-12 also provides videos and Other amazing tools, which I am very grateful for!
Bettina
CK-12 has really helped me when it comes to school assignments and homework. It's a great website and I hope it stays up and running for many more days to come :D
Penelope
This program has helped me exceed and get a so much better grade in science. THANK YOU!!!
Careena F
Helped me prepare for my teacher certification math portion.
Comments from Educators
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.
This website has helped to design a customized website that addresses the specific content my students are covering.
Colleen K.
I can barely remember how I used to teach with an old dusty textbook. I have kept those around, but now I use them in a special activity: I have students rip out pages to underscore the fact that science is constantly changing. Traditional text, especially in science, are obsolete before they even ship. Needless to say, they are also very expensive. I have also turned several colleagues onto CK12 and now your awesome products are used in several grades here.
Colin H.
CK12 provides standards aligned digital text books, videos and activities I use while teaching.
Cindy E.
I am an elementary school teacher and this learning center has advanced my students so much. It is very helpful in the curriculum and overall is a great brain trainer for students k-12
Cindy M.
Excellent exercises and resources! Congratulations!
Cielo
Thanks for making your lessons available! It helps a lot as a supplement of my lesson.
Cicelia A.
It has helped me explain, through problems and text, basic concepts to my students.
Chuck N.
Awesome resource!!! Keep it free!! Keep up the excellent work!!
Christopher S.
I am so pleased with CK-12. The information is so great for all learning styles and types. The variability of the site allows for differentiation and diversity of learning. Thank you for everything thtat you have done and will do for my students.
Christopher M.
I have greatly appreciated the flex books and the connected practice sets! Those practice sets have been great help to my students that need just a little more time with material, and it saves me time from having to create more material resources myself!
Christine
K-12 is still a new educational system here in the Philippines and its effectivity leads me to seek reliable resources and materials. And, indeed, CK-12 has answered my needs as an educator. Cheers, CK-12!
Christine D.
it helped me on a lot of stuff
Christianna
Great science content! Lots of resources; video, text, quizzes. Love the connectivity to Edmodo. Very helpful!
Christiana D.
ck12 has helped me by teaching me new things in algebra and learning more and more about daily math life
Christian D.
So fun for students. Used the Natural Selection mouse interactive as a Do Now, so great.
Cheryl
I first used the CK12.org webpage in conjunction with traditional style biology ibook four years ago after going to a technology training. Now I have open sourced a regular biology Flexboook and an honors Flexbook for use by our entire school and embedded
Chris J.
our lessons make my job so much easier. I can count on quality lessons from you and can use them to meet student accommodations. Thank you.
Chris E.
I can find problems that suitable for my grade 8 son.
Cherry P.
it was a good educational website
Chelsea