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
you helped me with science grade
Faith
you helped me pass algebra 4
Jonny
This site helped me that I am passing all my grades and I appreciate all the help.
Matthew Abadam
You helped me look and learn about minerals and many more things. HAPPY ANNIVERSARY!
Candace
Thanks!!!!!!!!!!!
Yoselin Huequis-Ayala
I am a student, currently getting my Masters in Special Education and I have found that the resources available at ck-12 have inspired me and stimulated a fresh approach to teaching and learning, particularly for kids with special needs and for kids needing enrichment resources.
Patty Adams
it helped me understand physics more.
Jamessantana
well it help me to do my cornel notes and to get the work i need
Abdiel
When I have problems in science, cK-12 is there to help.
Alan Mao
My school curriculum is onilne, and they direct me to you guys for science, and it's actully fun to learn science now!
Maeryn
You helped me by learning how atoms are and how small they are. It's crazy on how small they really are.
Falynn Peterson
CK-12 Helped me better understand things that were spoken in-class.
Zach
CK-12 Provides excellent learning tools and essentials and allows me to access it online for free.
Sean Finn
Hello!!!
Venku
OMG!! cK-12 has helped me with sooo many assignments at school!! When my teacher assigns me a page from this website, it helps me with things I don't know, and when I take a quiz afterwards, I get a great grade!! Thank you cK-12!! :D
Wolfesess
I love to use this website for 7th grade science it helps soooooo much i love this website.
Ian
y'all helped me learn about minerals.
Izzy
CK-12 has helped me understand chemistry better and i want to congratulate and thank you for your services
Comments from Educators
Awesome resource!!! Keep it free!! Keep up the excellent work!!
Christopher S.
it helped me on a lot of stuff
Christianna
I have used cK-12 to help teach and plan lessons for my students.
John A.
My class has learned so much from ck 12, its easy, resourceful, and all in one place. Thank you so much!
Alex J.
I have used articles on a variety of Science topics with students to enhance their understanding
Ela B.
free books!!!
Lauryn C.
CK-12 is off thee chart! I love using this tool in my chemistry classroom because it brings in a variety of perspectives and does progressive testing. A great tool for getting them ready for what NGSS is bringing down the pipeline.
Kelly M.
CK-12 is an amazing site to use to help students understand topics better, and it has helped me through my earth space honors class. Thanks so much!
Dalila Z.
I am just starting to use Ck-12, so far it seems like a great resource for homeschooling my daughters.
Margaret B.
Thankyou thankyou thankyou very much for providing these resources for free. ck-12.org is very great resource for students it is very helpful in schools and out of schools for self study.
Biswajit A.
CK-12 IS AMAZING! It deepened my child's knowledge and understanding involving geology, health, and much more! Thanks a bunch for always being there for my child when he most needed it.
Jewel
Help my students learn in their Science class.
John B.
I can teach my kids a variety of subjects and topics. There is a lot of amazing material to help my kids in school.
Daniela
I love your online book and resources! I have been using your online book with my middle school students for 3 years and I love it. Thank you for providing excellent materials for us.
Connie Jo E.
it has helped me to attain my bsc
Garvin M.
ck-12 is an amazing resource that provides up to date information that I can use to supplement our science textbooks. It also has leveled activities which helps when differentiating instruction. Keep up the great work!
Donna M.
As a teacher it provides a resource for my students they may not have thought about. I look forward to seeing what it has to offer.
Ed
Love the ability to customize lessons!
dabourd