For the past 8 years, CK-12 has been on a mission to provide free access to high quality educational content in multiple modalities, and you have been part of our success. Thank you!
CK-12 has no subscription, no advertising and no licensing to schools or users. Everything on CK-12 is 100% free – forever. And we intend to keep it that way. At the same time, we are committed to useful content, with high quality, measurable impact.
We appreciate your support at any level – $5, $10, $20, or whatever you can. Help us accelerate our impact and help every student in the world. These donations will be used for more work from our team to you.
Thank you for joining our mission! Each learner’s success is accelerated with your help!