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 is a great resource for students to get extra practice or enrichment of the topics we are studying in class!
Kathryn L.
CK-12 has provided relevant reaading material for my students... don't know what our school would do without your support
Kathleen L.
We frequently use copies of the content to send with students who are suspended, sick or otherwise unable to attend class. It's saved many headaches when trying to find material for these students.
Kathleen N.
CK-12 is helping to supplement our son's homeschool curriculum! Thanks for such a great resource!
Katherine
It allows me to assign research when I'm not there.
Katherine
It's helped my grade K daughter work on her math while I help her brother.
Katherine
ck-12 has been an excellent resource to my Sociology class. We use your online textbook for all units. Thank You!
Kate S.
Love the free online science textbooks
Kate O.
Thank you for providing such a comprehensive and high quality library of resources! I love the customizable textbooks. Thank you!
Kate
CK-12 is a terrific resource. I'm the science chair at an independent school in Los Angeles. We have been moving away from physical texts for a while and CK-12 is the best online alternative in our opinion. Students enjoy the varied learning formats and teachers appreciate the class management options. Happy Birthday CK-12!!!!
Comments from Educators
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.
I have used parts and all of many lesson plans. Thanks.
Cathryn B.
Providing guided resources for teaching Earth Science. I class that I only recently began teaching was incredibly beneficial
Cassy 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