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
This site helps me a lot to learn the concept in easy way by providing the lot of dynamic web page representing the main theme of concepts.
Murali
It has helped me with writing, math, and physical science. I have passed many of my test in school because of this website.
Claude M.
HI! We use this website every day in class and we are writing a 17 paragraph research paper on energy. We are so happy its there!
Margot R.
yall helped me because yall have alot of infermation and i appretionate that so i have been getting good grades on my report and progress report card so thank youu soo much !
Macayla J.
CK-12 has helped me with my 6th grade homework several times! Happy 10th Anniversary!
Logan D.
thank you i now have fun doing homework and activities thank you very much and Happy Anniversary!!!
Kimoni D.
Thank you for helping me out with my science homework! I probably would have failed without you. My science teacher even tells us to always trust CK-12. Congrats on your 10th anniversary!
Jennifer
I use CK-12 for my science, math, and asking questions. Since I am home schooled this website is a great thing for me because it is a boost on my education and for others who are like me. I really like that you can ask questions and answer them as well. Y
Lexi
it helped me by if i did not know something all i had to to was type what i needed t know in and i would learn XD
Jazmyne
Hi ck-12!!! congratulations!! Im one year older then you!! But....... you guys helped me get a A in science class and my teacher was very impress with my work I have. I just started when I first became a 6th grader, and I was pretty mad I had too start a new website. I always had gotten a D in science and I love science, so it hurt me to see I was failing. But I came home that day and my mom told me to do it any way, so I signed up and then BOOM!!! I fell in love with this website!! My teacher always told me that I needed some help with science, so I wold get on ck-12 and asked a helper for some help. My teacher always told me I could study more of a topic to get caught up with the other students, so I would hop on ck-12 and read,study,watch,and write down the topic. Since I started ck-12 I have an A in science,I have honor roll, and help other kids with science too!! So now that I am almost finished, congrats on having your 10th birthday!! Without you guys I dont know were I would be.Happy birthday!!! -Jasmine Whitfield-
Comments from Educators
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
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.
It will help me prepare my students also see where they are in their learning.
Angela
Thank you for helping me home school.
Anel
You Helps us to thrive! We want to say you thank you!
Andrew