You can also try these related scripts:

• KhanHack - Khan Academy Answer Hack
• KhanHack - Sloppy lazybones anti-homework production
• proxies moddified khan hack - Here Is A Moddifed Version Of Khan Hack
• Oh Yes! - Oh Yes! Oh Noes! The Error Buddy is now much less annoying on Khan Academy.
• KA Editor Tools - Modifications/fixes for the Ace Editor embedded in Khan Academys programming projects.