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'm usually great with math but I always struggled with division and ck-12 has helped me concur that issue in his enlightened my math life.
Akinle Armand
I am a biology student so it helps me a lot when doing assignment
Ikhmal Syuqkin Bin Ismail
you teach me to never give up
Lauren
They have provided the ability to learn more things in new ways.
Blake Godbold
CK-12 has helped me understand my homework a lot more.
Fafnir
it has helped me alot with math and it is a good way to learn
Aj W
It helped me study for some tests that I got 100 on
Garret
CK-12 has helped me so much in school, whether for the basis of a topic or extra-credit work. Happy Anniversary, and keep up the great work!
Ellie
CK-12 has helped me with tests, homework, and learning different subjects.
Serenity Guerra
I've only been using this site for roughly a week but in that week I have actually been able to complete and understand my homework and I have a test soon on what I've been studying here and i have no doubt I will get a amazing grade on it. I'm so thankful on the vast number of topics there is as well I shared this site with my friend as well and it definitely helped their grades as well.
Racheal
Got me to understand global warming
Ivan
Thanks for all the help with homework!!!!
Lainey Shio
it has helped me get a better edjucation the teachers are tough sometimes but i think it is better for me
Serena Woodward
It has made me understand science more! Thanks.
Wilber Alexander Flores
It helped me help people and help the world! yayy!!!!!
Lam Vo
CK-12 has helped me with a lot in biology. Happy Birthday CK-12!!!
Israel
I LOVE CK12, always educating me in a fun and easy to understand style
Ola
It has helped me do online geometry.
Patrick
You are very helpful.
Akiya Sharp
It helps me understand and learn things better.
Comments from Educators
It has saved our district thousands of dollars potentially allowing the district to use the money for other needs. It has allowed the students to use the book on their personal devices, but we also were able to print hard copies at reasonable prices to th
Darlene K.
ck-12 has made it possible for me to easily and quickly provide resources for my students at ALL levels! It's user friendly and student friendly! It's one of the 1st sites I visit because the content quality is consistently excellent.
Danielle D.
Me ha ayudado a planear clases más interesantes para mis estudiantes.
Danelly M.
I can teach my kids a variety of subjects and topics. There is a lot of amazing material to help my kids in school.
Daniela
An invaluable resource for learning materials.
Dan P.
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 is an amazing site to use to help students understand topics better, and it has helped me through my earth space honors class. Thanks so much!
Dalila Z.
This cite allows me to provide practice for my students that isn't always just another worksheet. We all like the immediate feedback that this site provides.
Daire M.
Dairy D.
There have been available lessons that have helped my students have a better understanding of the material.
D. Ferrell
ck12 is outstanding with providing information, testing material and questions for students to improve their learning in biology. thank you
Cyril F.
I use ck-12 in my classroom. The school does not provide textbooks for the students, so I use the textbooks from ck-12.org for all of my classes except for AP Physics.
Cynthia B.
I have no textbooks to use in my classroom not even old ones to use as reference material for the students. Part of the educational standards is for students to be able to read content at grade level. How do you do this without books? CK12.org has been the provider of books and practice material. I am using it in all of my science classes except for AP Physics as those students are required to purchase a college textbook. Thank you CK12! Without your support and online material my job would be extremely difficult. Congratulations on 10 years of educational support.
Cynthia A.
This website has awesome material to help my students to understand the world around them.
Cynthia
Ck-12 has brought science to life in my classroom with online videos, challenging reading and built in assessments to help my students know what they are learning.
Courtney M.
I have used ck-12 science as my children's home school science curriculum for the past 2 years.
Cornella J.
Making connections between real-life concepts and applications with students!
Cottey G.
given ability to work with multiple skill levels in one classroom
Corinna B.
I love to use ck12 on and off campus. and i love all the free resources
Cooper L.
kK-12 have helped me to find many activities and links to use in my class
Consuelo S.