Testimonials

See the opinions of students and educators just like you. Select from the following to learn more.

CK-12 is Adjustable to Each Student's Level of Learning
X
CK-12 is Adjustable to Each Student's Level of Learning
Students Love CK-12 Study Guides
X
Students Love CK-12 Study Guides
CK-12 PLIX Makes it Very Easy for Teachers With Very Little Prep Time
X
CK-12 PLIX Makes it Very Easy for Teachers With Very Little Prep Time
Personalizing and Blending Learning with CK-12
X
Personalizing and Blending Learning with CK-12
CK-12 Meets Every Student's Needs
X
CK-12 Meets Every Student's Needs
EPISD Saw Results After One Year of CK-12 FlexBooks®
X
EPISD Saw Results After One Year of CK-12 FlexBooks®
CK-12 Offers Support for All Students and Teachers Worldwide
X
CK-12 Offers Support for All Students and Teachers Worldwide
Be a Champion Educator with CK-12
X
Be a Champion Educator with CK-12
Using CK-12 Modalities to Bring Learning to Life
X
Using CK-12 Modalities to Bring Learning to Life
CK-12 Keeps Your Students Engaged
X
CK-12 Keeps Your Students Engaged
CK-12 Fuels a Greater Learning Experience
X
CK-12 Fuels a Greater Learning Experience
CK-12 Availability: No More Excuses
X
CK-12 Availability: No More Excuses

Comments from Educators

This website has helped to design a customized website that addresses the specific content my students are covering.

Colleen K.

I am an elementary school teacher and this learning center has advanced my students so much. It is very helpful in the curriculum and overall is a great brain trainer for students k-12

Cindy M.

CK12 provides standards aligned digital text books, videos and activities I use while teaching.

Cindy E.

Excellent exercises and resources! Congratulations!

Cielo

Thanks for making your lessons available! It helps a lot as a supplement of my lesson.

Cicelia A.

It has helped me explain, through problems and text, basic concepts to my students.

Chuck N.

Awesome resource!!! Keep it free!! Keep up the excellent work!!

Christopher S.

I am so pleased with CK-12. The information is so great for all learning styles and types. The variability of the site allows for differentiation and diversity of learning. Thank you for everything thtat you have done and will do for my students.

Christopher M.

K-12 is still a new educational system here in the Philippines and its effectivity leads me to seek reliable resources and materials. And, indeed, CK-12 has answered my needs as an educator. Cheers, CK-12!

Christine

I have greatly appreciated the flex books and the connected practice sets! Those practice sets have been great help to my students that need just a little more time with material, and it saves me time from having to create more material resources myself!

Christine

Comments from Students

they helped me learn more about the digestive sysyem

Kiarah C.

This site has helped me, with my biology, projects, understandment of learning more ways to solve work. Happy anniversary.

Kiara M.

Has helped me find all I need to know.

Kiara

In my math class this has been a great resource for homework and classwork.

Khadara

It's helped me a lot with my AP Biology class it clears up the topics I don't understand.

Keyli

CK-12 has helped me with my science class!

Keylee

It is a great learning tool for me and I love it so much

Keydon S.

An awesome learning tool

Keelan M.

CK-12 has helped me bring my grades up and help me pass 7th grade. It is an easy and credible source anyone can use.

Keekee C.

this has helped me with my learning abilities and also by learning new things I have never even thought about

Keekee