CELTA is a TESOL ("Teaching English to Speakers of Other Languages") certificate. It opens up doors for (better) jobs around the planet and in the USA, though not in public schools. It is the most "prestigious" of the TESOL certificates by reputation. It is designed by Cambridge University.
The course takes place in downtown Washington DC, 9 AM to 5 PM weekdays every day this month. A great location. And that's not the only reason the course is great:
In the morning, the six of us are students, studying this or that about what Cambridge says is right (some of which I am slightly skeptical of to be honest), and other general good things to know. For example, one lesson was on "a" phonetic alphabet ("a" because there are many).
It's an exciting time.