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
CK12 is the best online learning source ever.
Mason Ramos
Hi. it works a lot espically in school to help me understand things to help me proceed in life.
Naomi
CK-12 helped me with the water cycle and many other things, too.
Sean
Ck-12 helped me understand cell structure.
Mattea
this has helped me throughout my science grade. SO THANK YOU!!!!!!!
Careena
It helped me with astronomy
Natalia
Thank you for providing your resources in my Chemistry class. I have learned a lot from your texts. I learned about how ionic and ternary compounds bond together.
Tony Maggio
It has helped me through math a lot. Plus it got me a few extra points in my math grade
Toran Daylee Brown
its helped me so much, like sooooooo much, hmu ;0
Bethany Rimmer
i guess its easy to do work on the go now
Halen Willoughby
your videos and lessons helped me a lot. thank you so much . keep up the great work!!!!!!!
Imali
I love it! Thanks sooooo very much! A GREAT alternative resource from the traditional textbook.
Venise Borum
CK-12 has helped me by finding anything that needed for me to succeed in school.
Toma
It is has helped me learn a lot more about Science it is So Amazing I love it so much my 7th Grade teacher also uses it a lot.. when we talk about earth science and other things.....
Fatima
its helped me learn a lot about science. and i didn't know a lot of things i know now today! HAPPY ANNIVERSARY!!!!
Maegan Jones
i didn't know what orbitals were until now thanks you
James
i just started but so far has been great
Mahalia Barnes
it helped me in my science class
Ja'Crispy
it helped me get better at math and helped me raise my math grade from a 45 to a 89
Faruk
Its a great website
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.