Rabbithole is a Socratic tutor for a small school. Alongside the lessons our own teachers write, we draw on openly-licensed and freely-available educational material made by others. This page lists where that material comes from and the terms it's used under.
Source
Some of the short instructional videos in Rabbithole are curated clips from Khan Academy. Khan Academy is a nonprofit that makes its lessons free for everyone.
All Khan Academy content is available for free at www.khanacademy.org
We use these videos under the Creative Commons BY-NC-SA license that Khan Academy publishes them under. That license allows noncommercial reuse, and Rabbithole fits: we're a nonprofit school app, we charge nothing for access, and we show no ads.
Rabbithole is not affiliated with, sponsored by, or endorsed by Khan Academy. We're an independent app that happens to use their freely-available material — any mistakes in how a clip is chosen or presented are ours, not theirs.