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
Hello there! Congratulations and thank you for helping me through the great explanations thank you.
Willow
i haven't failed science thx to you
Matthew
Helped me learn science!!!
Yzan
To better understand nature.
Abraham Bernal
I'm doing an assignment for science and this link was recommended
James W
It helps me understand and learn things better.
Jacara Miller
It has helped me with all subjects over the past 1 to 2 years.
Samarj Clifton
it made my life easy
Mathunyane Alfred
cK-12 helped me get through my high school midterm without any problem, It was easy to study and quiz myself using this site
Garrett Keslar
ck12.org has helped me a ot keep it up guys and thank you so much
Canyon
necesito la resolver un problema con el teorema fundamental del calculo
Natalia T
CK-12 has helped me maintain and keep a good grade in ACC Chemistry this year. Keep up the good work!
Dalton Polley
IT HAS HELPED ME A LOT IN EXAMS.
Tony Jeeson
Your articles and tests help me do well in my science tests. thanks
Olivia Y
It has helped me learn more thank you k12
Takira
CK-12 has helped me understand my homework a lot more.
Fafnir
CK-12 has reinvigorated my love for knowledge and is my go to resource to practice and brush up on skills. Thanks to CK-12 I was able to relearn most of what I forgot and get back in school, thank you CK-12 I don't know what it would be like if you weren'
Ibrahin Ayubi
it has helped me get a better edjucation the teachers are tough sometimes but i think it is better for me
Comments from Educators
By making me a more competent teacher.
Jayson R.
Ck-12 has really helped me pass my praxis test and it helps me daily with my classroom teaching my students to expand their mind.
April R.
Hi people from CK-12! First and foremost, Happy 10th Anniversary! You've really helped my science class by giving us great information and FREE learning textbooks! You truly were a godsend to my teachers here at school. Thank you so much creating this web
Davina
CK-12 has helped my chemistry students to understand course concepts better. Students enjoy the interactive tutorials: these online tutorials help to differentiate learning in a more engaging way. I LOVE using CK-12 in my science classes!
Jeff O.
I am a first-year chemistry teacher in an under-funded charter school. Our books are almost 10 years old and our lab doesn't have a complete stock. While searching to remedy some of these challenges, I stumbled upon CK-12 which offers a solution to a semi-outdated text and no online option for students who have grown up in the technology age. Thank you for allowing me to add your site as a resource and have options for useful tools to teach my students. Your site helps to make me a better teacher.
Dr K
Integrating all subjects and resources.
Andrea T.
I used some of the lessons for my national board certification. Lessons from ck-12 have helped my students to understand concepts from readings and videos provided. Love Ck-12
Holly D.
Amazing resources for my 5th grade class! Grateful for it!
Jennifer S.
cK-12 has helped me teach my child on several subjects. It is a fantastic resource weather you homeschool or not.
Laura G.
Happy Birthday
Jay
It's my first year in a new school, with a completely different curriculum structure than I'm used to teaching in biology, and my class did not come with any textbooks! For the first 2 months of school I would spend countless hours trying to combine diffe
Kathryn S.
thanks my child is studing in 6th std .i want he knows all babic concept of math and science.thanks
Shobha K.
Providing lesson resources.
Brittany S.
I have read your biology books. With the help of ck books I am able to clear doubts of daughter and its helped me a lot. Thank you very much for CK
M.
It has given my students wonderful lessons!
Carolyn H.
Ck12.org has helped each and every student who has come to our center. I was been a great experience for our students, as well as a enormous help for the teachers! CK12.org has made our learning journey easier and more exciting!!!
Bright Harbor Academy
You have helped gain me so many assignments with full distinctions
Kelly N.
TEACHING CHEMISTRY
Fatih