Unlocking bonus skills
I am a high school French teacher in Washington state, and I showed Duolingo to my classes yesterday. I put it up on the smart board and walked them through the tools. My students became particularly enthusiastic when they saw the title of one of the bonus skills I had unlocked ("Flirting"), so I made them a deal: If they get to a certain point by next Friday, we will do Flirting together as a class.
This seems to be such a great carrot on a stick that I am wondering: I'm sure there are more bonus skills, since my most recent slot was taken up with the seasonal "Christmas." Is there a way I can have access to all the bonus skills available?
Madame Sensei (yeah, I teach Japanese too...)