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
It helped me with my math and science i got an A+ on my semester exam
Iysis
It helped me in science.
Quinn Hennessey
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
help me get smarter
Jonathan Rivera
CK-12 help me by making math books and lessons available.
William Wofl
CK-12 has been helping get through my Geometry class with no problems what so ever. Thank you CK-12!
Hall
I struggle at science but with ck-12 resources from my teacher helps me understand difficult concepts. So thanks a lot!
Paula
CK-12 has helped me understand science and science terms. I take notes on the articles CK-12 provides and I get good grades on my assignments.
Abraham
you teach me to never give up
Lauren
you help me learn plant pollination and about biology. thank you and i love you
Severa Swiger
helps practise my skills in maths
Nastia
This is amazing website that helps me learn everything I need to. Couldn't be more helpful!
Daelani
CK-12 has helped me in a great number of ways with my school.
Elishah Presley
Thank sfor great lessons in Science and History.
K. Pinnell
Helped me find ways how to solve math problems.
Evelyn
i didn't know what orbitals were until now thanks you
James
It helped me with astronomy
Natalia
It is a good website to understand the concepts of things
Comments from Educators
The website is great and rich; wonderful resources. My students demand work from the platform and they love the adaptive practice and quizzes. Thank you.
Felix B.
What a great resource. The flex books are excellent by themselves , but with the ability to edit them, they are fantastic. I especially appreciate the differentiated levels of the flex books. I use the middle school book for my 8th grade prep students
James G.
CK 12 is a great resource to use both in the classroom and for homework. The links to the Canvas platform are very advantageous to me and cut my grading time in half.
John R.
I enjoyed using cK-12. I is a good website for biology. I recommend it to any teacher or student dealing with biology. It is very easy to use, covers all topics in biology in the utmost simple and fulfilling way.
Ahmed E.
Simply put " You guys made my life easier!!!"
Gopalakrishnan R.
This website has helped to design a customized website that addresses the specific content my students are covering.
Colleen K.
love the worksheets
Marcie C.
CK-12 has helped me provide online resources for my special education students to access at home!
Lurleen M.
Awesome resource used for student teaching.
Ann
plan lessons
Artemis B.
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.
I use it during my lectures for Introductory Physics courses at the university. Helps reinforcing ideas and visualize sometimes quite complicated concepts.
Ania
Thanks for providing free, high quality resources for kids and teachers! I love the flexible way that resources can be built.
Mark H.
I like to have well rounded lessons and your lessons are easy to use on the iPad.
Karen S.
It brings new ideas and learning strategies to the table.
Faith W.
This has been an excellent resource for my class room. Our students do not have take home text books since we are a Title 1 school and money is limited. I have used this as a resource for homework and differentiation using your different workbooks. I have also used it as a large group presentation of a topic and then practiced using materials linked. I have also created several "webquest" type activities for use in our computer lab. Thanks for all of the hard work that went into this and I would love to see Social Studies/World/American history as fleshed out as the science is! Loved it!
Lorre C.
it helps me find fun, well thought out lessons for my students.
Alli
It has helped me with the additional resources available. They are very useful.
Emma A.