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
In a lot of science, CK12 helped me start off my knowledge in science so I could build off that foundation. It has helped me in many various science subjects, from the EM scale to how rocks are formed. And it isn't ever difficult to understand or condescending and easy. And my grade in science is an A. So thank you, CK12!
Alex D.
i have learned thins i havent learned before
Mason Vonwert
Helped me learn biology
Tahliek
Ck-12 has halped me get better grades in school. It's been a great study tool for me.
Samantha Mcfarlane
They helped me learn about the circulatory system
Galen Spies
It helped me pass my pre-k math class
Elliott
It is cool
Jamesoliver
CK12 HAS BEEN OF TREMENDOUS HELP IN MY SCIENCE CLASSES. SPECIFICALLY, BIOLOGY AND CHEMISTRY. THANKS SO MUCH FOR PROVIDING THE STUDY MATERIALS....KEEP UP THE GOOD WORK!
Adetola
It is has helped me learn a lot more about Science it is So Amazing I love it so much my 7th Grade teacher also uses it a lot.. when we talk about earth science and other things.....
Fatima
It has helped me understand my homework
Quintell Davis
hi there. Thank you for helping me learn.
Halley
you helped me so much thank you
Tkeyuoyt
Thanks or helping with my homework!
Jordan Bakar
I don't understand why it works like this but, it is amazing so I like it but, I think it shouldn't have a login for the students the teachers should only have a login. I love this website it helps me with my learning a lot so, thank you and have a good y
Taniya Henderson
This site has taught me many concepts in math. I want to review so that I will be ready for when I apply for a math position. This site teaches so much more than any other site that I have found.
Patricia Klakamp
cK-12 has been so helpful to me. Thanks to cK, I have learned so many things and expanded on my knowledge. You guys make it easier to understand history and make it actually fun, engaging,and interesting to do school! I love cK-12!
Evelyn Presleyi
It help me learn how to turn fractions into decimals
Adriana
CK-12 has helped me with a lot in biology. Happy Birthday CK-12!!!
Comments from Educators
You folks have done a great job getting the mental pictures of experts into the minds of novices. What a nice body of work!
Gregg S.
it helped me a lot. several lessons gave me ideas on how to attack and execute my lessons.
Gigi G.
I have found CK-12 a helpful resource for enriching my high shcool biology classes.
Beth A.
ck-12 helped me to build my lesson plans.
kaur
Dairy D.
I am a Science Olympiad coach for Anatomy and Physiology at a middle school. This is our first year as a team, so I have spent hours searching for materials. Your site offers just what we need.
Kippi F.
It will help me prepare my students also see where they are in their learning.
Angela
CK-12 has helped me by providing resources to support and reinforce lessons for my middle school students
Elaine H.
I am a newbie here but CK-12 has helped me a lot in teaching my students. Thank you, CK-12!
Helena K.
I love science and the online books are so easy to access! I love the ck-12 website home page thing! every thing is so well organized! I just love ck-12!
Isabella
I learned about CK-12 this year from the previous science teacher in my position at my new school. I have used CK-12 resources for all three of the subjects that I teach and my students just recently told me they would rather use CK-12 than Khan Academy.
Dan M.
CK-12 has helped liberate my classes from a traditional textbook. Now my students can read the content they need at their own level.
Donald K.
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
very good after all it is a helpful site to use.
Arianna B.
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.
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
Provide great resources for teaching my scholars Algebra
Akinade S.
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.