Testimonials

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

Let Your Students Explore with CK-12!
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Let Your Students Explore with CK-12!
Using CK-12 Every Day in Class
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Using CK-12 Every Day in Class
Instantly See CK-12 Content in More Than 90 Languages
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Instantly See CK-12 Content in More Than 90 Languages
Customizing CK-12 with Regional Content
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Customizing CK-12 with Regional Content
Save Money and Own Your Standards with CK-12
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Save Money and Own Your Standards with CK-12
Sharing CK-12 with Google Classroom and More
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Sharing CK-12 with Google Classroom and More
Why Teachers Love CK-12 FlexBooks®
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Why Teachers Love CK-12 FlexBooks®
CK-12's Free, Platform-Agnostic System for Finding and Editing OER Content
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CK-12's Free, Platform-Agnostic System for Finding and Editing OER Content
CK-12's PLIX and Interactives Help Students to Work Together
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CK-12's PLIX and Interactives Help Students to Work Together
CK-12 Made My Job Easier!
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CK-12 Made My Job Easier!
"I Use CK-12 Videos Whenever Possible"
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"I Use CK-12 Videos Whenever Possible"
CK-12 Meets and Exceeds Standards Requirements
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CK-12 Meets and Exceeds Standards Requirements

Comments from Educators

This is my first time at your website. I have demystified mathematics and looking to create and publish projects that enable students to become accountable for sense making to overcome previous barriers to progressive math studies to qualify with problem solving skills for 21st century careers from math-based STEM field curriculums for starting salaries of $60,000.

Jerry R.

GIVES READING ACTIVITIES TO KIDS

Jenny B.

Providing great resources for my homeschooling needs

Jenny

cK-12 is a wonderful resource. I am a middle grades science teacher and have enjoyed this resource on a weekly basis.

Jennifer R.

Congratulations! You have done good work and helped many in their education journey. Interactive practices, instantly graded tests, and outlines and explanations, including videos and PLIXes, have helped me and my math students.

Jennifer T.

Amazing resources for my 5th grade class! Grateful for it!

Jennifer S.

Looking for a better way to explain scale drawings and proportions to my special education students

Jennifer L.

I value cK-12 as a resource. I am a middle school science teacher and use cK-12's website on a weekly basis.

Jennifer R.

It helped my son so much he is algebra 1 and is passing it very well

Jennifer D.

CK12 was a great resource for my middle school students because they were preloaded on their devices. Our internet connections were spotty at best in my classroom and CK12 provided a stable platform for me to teach and students to learn.

Jennifer

Comments from Students

cK-12 HAVE HELPED US BY HAVING GREAT RESOURCES AND LEARNING DIFFERENT WAYS TO TO DO THINGS. thank u for your wonderful time and effort Happy Anniversary

Rosemary F.

cK-12 has helped me whenever I need a question answered there right there to help

Rose H.

Thank you for helping me learn. Your practice and articles has helped me.

Rose

ck12 has helped me a lot with math thanks a lot:3

Ronnie

It helped me in science class

Roger

ck-12 has helped me with my multiplication, division, and Ela.

Roger W.

It helped me with note taking in bio class

Rocco I.

It helped me to improve on my test and other assignments

Rochelle S.

how to know when a triangle is obtuse,right or acute

Roberto M.

Often times I struggled finding answers or a good way to study. I asked my teacher how I could improve my studying skills, and she suggested me cK-12. Amazing website, congratulations.

Roberto C.