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'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
CK-12 helps me learn more within 15-20 minutes of science than 1 month of science class. Thanks CK-12!
Aditya Parulekar
thanks i just started to use ck12, but i am proud that its bilingual so ou can get pages translate into french for my french students ,,,merci a vous ck12
Geoffroy
It has helped me learn science. In science class we always use this site. My teacher loves this site. Thanks for everything.
Jordan
Ck-12 helped me with math by showing and teaching me about and , Writing and Evaluating Algebraic Expressions.
Alaena.Reinersman
CK-12 has gave me more knowledge about science.
Naomi F
it has helped me understand the complexity of science and break it down for me to comprehend it a whole lot better.
Ivorie Snow
CK-12 has helped my grades improve
Dakota
You helped a lot with my science work. Thank you!
Elizabeth U
My teacher assigns work based off articles from your website and you always have clear answers in the readings so thanks for giving me easy 100's.
Jalyn Grace
Its a great website
Blake
It helped me learn a lot, helped during my biology classes
Ivan R Ramos
CK12 has helped me learn things my teacher and school can't provide.
Evelin
its helping my grades get better
Jamario
It has helped me in many ways, i don't have to carry any books anymore thanks to you my shoulders don't hurt anymore HAPPY BIRTHDAY CK-12
Abagayle Spears
CK-12 helped me out by finding information on here for my project
Ajahnee Hudson
CK-12 has helped me better understand how the world is and it's amazing. So, congratulations,happy aniversery and thank you for this amazing website. BYE! ;-P
Carissa
CK-12 helped me with the water cycle and many other things, too.
Comments from Educators
You have flex books which have been a great tool for my students to read and watch videoclips on Ecology. I look forward to using your flex books on Evolution.
Janet G.
Thanks for all the content assistance!
Eve S.
I love the helpful video links within the textbook and the integrated practice problems for the students
Cathy C.
With our "bring your own device" initiative, our corporation no longer buys textbooks. Thank you for giving me a way to still provide my students a way to have a good information source they can continually turn to.
Laura
Making connections between real-life concepts and applications with students!
Cottey G.
It has helped me find resources for my students
Carema M.
our lessons make my job so much easier. I can count on quality lessons from you and can use them to meet student accommodations. Thank you.
Chris E.
kK-12 have helped me to find many activities and links to use in my class
Consuelo S.
The CK flexbook has allowed our science department to have an up to date resource for most of our science classes. We have not had hardcopy text books for over 20 years.
Jim L.
This resource has been invaluable to me. I can use it for remediation and acceleration. Thank you.
Louise P.
I love cK12! I have used it in my high school science classes for 4 years now. I love how well the readings coordinate with the interactives and I love how I can integrate it into my Edmodo class pages as well. I REALLY love how I can find the same topic at different reading levels and in Spanish so that I can make sure every one of my students can learn science content and themes at any skill level.
Katie
It has helped me with very fun and creative activities to deliver meaningful lesson to students of different learning abilities.
Isela
Hello ck-12, congratulations on your 10th anniversary! This is my first time on the site so i can't really give you a good feedback yet , but rest assured i am thankful for being able to find the site.
Jasper P.
Very good resources and excellent lessons.
Erington
Thank you for providing such a comprehensive and high quality library of resources! I love the customizable textbooks. Thank you!
Kate
CK-12 has not only been a great resource for my students, but it helped me land my first job out of college! I used a CK-12-created NearPod presentation in a lesson I taught to a panel of interviewers in my final round. Thank you for the great work!
Alexis M.
The plix and other resources have been very helpful in allowing me to address different types of learners.
James S.
Weekly quizzes and online practice. Also use the flexbook for practice for HW.
Berenice