khan academy exercise

[johnfelipe]

is possible integrate khan exercise?

[singingwolfboy]

I'm closing this issue for now. We're turning off Github Issues, because there are too many different places that people can go to ask for help. By reducing the number of places to ask for help, we're making it easier for knowledgable people to find people to help, so that everyone can help each other more effectively. If you still need help, try asking on our mailing lists or creating an issue on our public JIRA issue tracker.