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
CK-12 has been incredible in providing me with information for my biology projects.
Abdullah Alikhan
It helped me with my math and science i got an A+ on my semester exam
Iysis
It help me learn how to turn fractions into decimals
Adriana
just found this random website because i was searching for places with convergent oceanic-oceanic plate boundaries
William
CK-12 has helped me with my homework and things i did not understand. Thankyou
Dajah
Always help me do my lessons with articles about the topic im learning about. Thanks for taking your time and making it all free.
Peter
It boosted me through a lot of math stuff.
Eliott
It has me very much from helping me with science class to improving my knowledge on science and chemistry. I thank who ever has invented this wonderful site and congratulate you on the 10 years you have had this site.
Kaitlyn Davidson
Math is a universal language one, that we don't fully understand, or I feel being taught properly in schools. Thanks to Ck-12, I am able to bridge the gaps in my knowledge regarding basic math concepts and move on to more advanced topic. Thank you for b
Wensley
When I have problems in science, cK-12 is there to help.
Alan Mao
Has provided needed resources and provided us with ideas.
Patricia Aguirre
I have been having problem with solving my algerbra problems
Tracy Robinson
I have been learning a lot from ck-12!!!!!
Veer Sanghavi
Learning Algebra
Elizabeth
ck-12 has helped me prepare for my return to college.
Tony Thompson
Learning new information.
Candice Sabrya Medley
This site has helped me learn about new and different things that I hadn't known before! So, thank you!
Maeve
its dope
James E
You have helped me become a better student.
Kaitlyn D
Helped me get good grades and get better at Biology
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.