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
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 learn how to do my math better
Brady
Absolutely an amazing experience. I love that I can customize the textbooks to include what I believe is relevant in the order that I feel is a good flow. Thank you for saving my district so much money!
Jason W.
with lessons for the 1st grade classroom
Loralei B.
ck12 has help me by making me study even harder i am really excited that i am using ck12 and i would give you all a congradulations your 10th anniversary you did work hard for this
Gabriela C.
This is my first time at your website. I have demystified mathematics and looking to create and publish projects that enable students to become accountable for sense making to overcome previous barriers to progressive math studies to qualify with problem solving skills for 21st century careers from math-based STEM field curriculums for starting salaries of $60,000.
Jerry R.
NOT AT ALL
Gracie
many teaching resources are getting this site for me
Jaleesa
I have been able to take the real world applications and interesting topics from ck-12 and incorporate them into my science lessons.
Lauren H.
It's a very fun and interactive way to teach and sum up the boring information teachers repeat again and again.
Joe M.
I have used parts and all of many lesson plans. Thanks.
Cathryn B.
I am a high school biology and chemistry teacher. I assign ck-12 as a resource for students who struggle with concepts. I love the Real Life articles. The students get to understand why science is important. Thank you
Laura S.
I have greatly appreciated the flex books and the connected practice sets! Those practice sets have been great help to my students that need just a little more time with material, and it saves me time from having to create more material resources myself!
Christine
I have used the lessons to help my ELL's, for introducing lessons, for tutoring, and for enriching my lessons. Thank you!!!
Fernanda S.
CK-12 has helped my students access current science content as we implement the Next Generation Science Standards.
Barbara W.
Provides plenty of well structured lessons
Janet
You have helped my teachers by provided a large and reliable source of information for them, as well as a cite that their students can go on and explore. In turn, that helps me.
Alyssa
I am a special education teacher, I use information to help kids understand concepts in the biology class.
Jason V.