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
Hello there! Congratulations and thank you for helping me through the great explanations thank you.
Willow
i haven't failed science thx to you
Matthew
Helped me learn science!!!
Yzan
To better understand nature.
Abraham Bernal
I'm doing an assignment for science and this link was recommended
James W
It helps me understand and learn things better.
Jacara Miller
It has helped me with all subjects over the past 1 to 2 years.
Samarj Clifton
it made my life easy
Mathunyane Alfred
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
ck12.org has helped me a ot keep it up guys and thank you so much
Canyon
necesito la resolver un problema con el teorema fundamental del calculo
Natalia T
CK-12 has helped me maintain and keep a good grade in ACC Chemistry this year. Keep up the good work!
Dalton Polley
IT HAS HELPED ME A LOT IN EXAMS.
Tony Jeeson
Your articles and tests help me do well in my science tests. thanks
Olivia Y
It has helped me learn more thank you k12
Takira
CK-12 has helped me understand my homework a lot more.
Fafnir
CK-12 has reinvigorated my love for knowledge and is my go to resource to practice and brush up on skills. Thanks to CK-12 I was able to relearn most of what I forgot and get back in school, thank you CK-12 I don't know what it would be like if you weren'
Ibrahin Ayubi
it has helped me get a better edjucation the teachers are tough sometimes but i think it is better for me
Comments from Educators
Awesome resource!!! Keep it free!! Keep up the excellent work!!
Christopher S.
it helped me on a lot of stuff
Christianna
I have used cK-12 to help teach and plan lessons for my students.
John A.
My class has learned so much from ck 12, its easy, resourceful, and all in one place. Thank you so much!
Alex J.
I have used articles on a variety of Science topics with students to enhance their understanding
Ela B.
free books!!!
Lauryn C.
CK-12 is off thee chart! I love using this tool in my chemistry classroom because it brings in a variety of perspectives and does progressive testing. A great tool for getting them ready for what NGSS is bringing down the pipeline.
Kelly 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.
I am just starting to use Ck-12, so far it seems like a great resource for homeschooling my daughters.
Margaret B.
Thankyou thankyou thankyou very much for providing these resources for free. ck-12.org is very great resource for students it is very helpful in schools and out of schools for self study.
Biswajit A.
CK-12 IS AMAZING! It deepened my child's knowledge and understanding involving geology, health, and much more! Thanks a bunch for always being there for my child when he most needed it.
Jewel
Help my students learn in their Science class.
John B.
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
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.
it has helped me to attain my bsc
Garvin M.
ck-12 is an amazing resource that provides up to date information that I can use to supplement our science textbooks. It also has leveled activities which helps when differentiating instruction. Keep up the great work!
Donna M.
As a teacher it provides a resource for my students they may not have thought about. I look forward to seeing what it has to offer.
Ed
Love the ability to customize lessons!
dabourd