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
Wonderful simulations to enhance student understanding AND they work on the student iPads!
Chauncey H.
it help my student to have a better understanding on the specifc topic in the class discusion.
Charlin
In the digital age I find have a paper textbook for a dynamic science world limiting and not budget wise. Thank you for making this service available! I find it very useful as a resource in my classroom.
Charles R.
I have two children. One is 10 and the other 7 and they both are getting better with math as the semesters go by. Thank you for makimg this site free.
Chantely B.
well I am impressed by the high quality of the material, best of all, free to use. Keep up the good work!
Cesar R.
I love the helpful video links within the textbook and the integrated practice problems for the students
Cathy C.
Providing guided resources for teaching Earth Science. I class that I only recently began teaching was incredibly beneficial
Cassy B.
I have used parts and all of many lesson plans. Thanks.
Cathryn B.
It has given my students wonderful lessons!
Carolyn H.
I shared this resource with my students
Carmen M.
It has helped me find resources for my students
Carema M.
Helped me become a better teacher by offering a variety of resources to keep them engaged!
Caitlin C.
CK 12 was useful as I could download the text books for use with me students. Now I cannot do that anymore. Congratulations on your 10'th anniversary, you have gone from useful to useless for me.
C Smith
Amazing resource! With so many statewide educational budget cuts, it has been extremely difficult to find quality teaching resources. cK-12 has filled that niche quite nicely! I would recommend this valuable site to anyone. Thanks!
Bryan H.
Identify resources staff can use to develop relevant science curriculum
Brian A.
Providing lesson resources.
Brittany S.
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
helped me learn how to do my math better
Brady
This is a great "go-to" site for my daughter and I when she is struggling with a new math concept and needs that extra help. Thanks cK-12!!
Brenda S.
CK12 has helped me assist others by allowing them to be a part of this learning initiative.
Boris A.