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
it made my life easy
Mathunyane Alfred
CK-12 has helped me by allowing me to learn more things every day. I think that CK-12 is the right site for me and i love this site.
Jonvion Bryant
Ck12, has helped become a better student and work harder in my science class.
Lamees Sattar
ck12 hepled me get better grades so far and helped and teached me alot of things i didnt know
Sami Jones
Its helped me study a lot!
Alana
It helped me learn a lot, helped during my biology classes
Ivan R Ramos
It has helped me by teaching me a lot about what I didn't know
Ella U
Ck12 has helped me push myself to be passionate about chemistry. thank you.
Abby Kilpatrick
CK-12 has helped me in a great number of ways with my school.
Elishah Presley
ck-12 helped me with my homework and my project at school
Genice Sverre B. Dagatan
it helped understand how to solve ratios.
Nasia
nesecito que me ayuden con una tarea de geometria
Yuleni Meisa
It helped me to study for my tests, I really love it
Laith
This has helped me study for tests and has helped me in science class.
Haleigh Johnson
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 this website
Camya Boone
helped me understand concepts in chemistry
Aileen Berroya
I love to use this website for 7th grade science it helps soooooo much i love this website.
Ian
CK-12 has helped me a lot with my grades
Immanuel M
IT HAS HELPED ME A LOT IN EXAMS.
Comments from Educators
It has saved our district thousands of dollars potentially allowing the district to use the money for other needs. It has allowed the students to use the book on their personal devices, but we also were able to print hard copies at reasonable prices to th
Darlene K.
ck-12 has made it possible for me to easily and quickly provide resources for my students at ALL levels! It's user friendly and student friendly! It's one of the 1st sites I visit because the content quality is consistently excellent.
Danielle D.
Me ha ayudado a planear clases más interesantes para mis estudiantes.
Danelly M.
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
An invaluable resource for learning materials.
Dan P.
I learned about CK-12 this year from the previous science teacher in my position at my new school. I have used CK-12 resources for all three of the subjects that I teach and my students just recently told me they would rather use CK-12 than Khan Academy.
Dan 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.
This cite allows me to provide practice for my students that isn't always just another worksheet. We all like the immediate feedback that this site provides.
Daire M.
Dairy D.
There have been available lessons that have helped my students have a better understanding of the material.
D. Ferrell
ck12 is outstanding with providing information, testing material and questions for students to improve their learning in biology. thank you
Cyril F.
I use ck-12 in my classroom. The school does not provide textbooks for the students, so I use the textbooks from ck-12.org for all of my classes except for AP Physics.
Cynthia B.
I have no textbooks to use in my classroom not even old ones to use as reference material for the students. Part of the educational standards is for students to be able to read content at grade level. How do you do this without books? CK12.org has been the provider of books and practice material. I am using it in all of my science classes except for AP Physics as those students are required to purchase a college textbook. Thank you CK12! Without your support and online material my job would be extremely difficult. Congratulations on 10 years of educational support.
Cynthia A.
This website has awesome material to help my students to understand the world around them.
Cynthia
Ck-12 has brought science to life in my classroom with online videos, challenging reading and built in assessments to help my students know what they are learning.
Courtney M.
I have used ck-12 science as my children's home school science curriculum for the past 2 years.
Cornella J.
Making connections between real-life concepts and applications with students!
Cottey G.
given ability to work with multiple skill levels in one classroom
Corinna B.
I love to use ck12 on and off campus. and i love all the free resources
Cooper L.
kK-12 have helped me to find many activities and links to use in my class
Consuelo S.