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
the videos were very infomational
Jordan Smith
CK-12 has helped me allot in learning science. i usually can't pay attention in class so this is what i use and it where i learn most of my science honestly and its nice neat orginzaed and just easy to use. so thanks for making this
Samandar Khusenov
Helps me with math and science and it is easy to use and fun thank you Ck - 12
Payton Spears
Ck 12 has helped me as a teacher to find resources
Vernica Lee
Thanks for helping me with science
Selena
ck12 has helped me by helping me learn science and know I am on a A-B on a roll. THANK YOU CK12!!!
Gabriella G.
It has helped me to be able to learn about what we have done in Chemistry, and tests me on what I know.
Dana Mcswain
My teacher was able to teach us great things through ck-12
Olivia Guerrieri
super helpful and easy to use
Ivana
The math and science is the best, and it lets me control when and how I learn. Overall the best homeschool education place.
Galayna Erickson
I use this as a secondary program on my online school!!! i do like it alot keep up the work guys
Serenity C
it has educated me very well , and helped me get into the the 9th grade.
Late'Ya Matthews
You made me get a 75 on a test
Im Mad
CK-12 helps me learn more within 15-20 minutes of science than 1 month of science class. Thanks CK-12!
Aditya Parulekar
Thanks!! This resource has been so helpful. My Science teacher uses a lot in class. This is my go to resource when it comes to Science!!
Yonnie Daniel
It has helped me learn and helped me on my classwork!!!!
Raeleigh-Grace Ruiz
You helped me a lot with science
Abel
They're Just SO GREAT!
Kailey Sterling
helped me learn problems faster
Vicente Tinoco
CK-12 has helped me in a lot of ways. You have helped my in science, math, and other subjects! Thank you!! I also appreciate that you have let me get all A's throughout 6th grade. Hope to study on this site more often!!!
Comments from Educators
CK-12 is an excellent resource for teachers and students. It has been very helpful in providing intervention & remediation for my students.
Antoinette C.
CK12.org has given me an online text and teaching materials that are NGSS aligned. This has enabled me to teach to the standards even though our school does not have a physical textbook. This has been such a lifesaver as a junior high science teacher!
Anne K.
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.
Thanks to CK12.ORG, my students enjoy the assignments and the activities created by ck12. Thank you.
Anna M.
Awesome resource used for student teaching.
Ann
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.
I use it during my lectures for Introductory Physics courses at the university. Helps reinforcing ideas and visualize sometimes quite complicated concepts.
Ania
It will help me prepare my students also see where they are in their learning.
Angela
Getting new resources is always a struggle. Our district has really been focusing on technology. New teaching materials hasn't been high on the list. Thanks to CK-12 I have the text resource that I need being used in a way my students enjoy!
Angenette S.
Thank you for helping me home school.
Anel
You Helps us to thrive! We want to say you thank you!
Andrew
I love using your textbooks for my classroom. Ties in tech and provides an inexpensive alternative.
Andrea M.
Integrating all subjects and resources.
Andrea T.
I use it as a resource in my classroom.
Amy L.
CK-12 has provided our school with free science texts and has given my students the opportunity to publish their writing online in the Understanding Biodiversity book. Thank you!
Amy H.
Helped me in my Anatomy and Biology classes - reinforcing content through grade appropriate reading
Amy B.
CK-12 has been an integral component in our move to 1-1 in the classroom. The ability to edit the content allows us to tailor the CK-12 textbooks to fit our needs. We love CK-12!
Amy
CK-12 has been helping us teach our children several subjects. Thank you #ck12foundation .
Amber
i can make my students understand better, thanks
Amruth L.
Hello CK12! I am an 8th year science teacher. I taught in Philadelphia and Washington DC, and am currently in Abu Dhabi teaching science to 12 year-old girls. CK12 is a revolutionary website. Not only can I access high-quality science literature, but I ca
Amber W.