What are the requirements for a teacher in the Baptist church? A while ago, I read this academic paper by Casey Schutt. Although the entire paper was about evangelism ethics in the workplace and how self-identified evangelical/born-again Christians go about doing that in contrast to the religiously pluralistic workplace environment, I got a little interested in how Casey Schutt could just visit a Baptist church and teach 3 different classes. What are the requirements for a teacher in the Baptist church? How trained are they? Do you have to be baptized under the right formula to teach?
One of the key distinctives of Baptist churches is that they are congregationally governed and generally non-creedal. That means there's no overriding "Baptist" policy on who can and cannot teach in the church. You can be fairly certain that most Baptist churches will require a person to have been baptized as an adult in order to teach, but there are exceptions even to that. It's up to the individual church, and usually would be specified in the church's bylaws (or, if not, up to the discretion of the pastoral staff).

This isn't to say that Baptist churches are universally lax about who can teach, only that their standards aren't unified. Besides baptism, the typical requirements would be based on 1 Timothy 3 and similar passages, which hold leaders to high moral standards and require a certain level of respect and standing within the community. 

Some of the more conservative Baptist churches would also exclude women from all teaching roles except that of teaching children. This is becoming less and less common, as even those churches that exclude women from the ordained pastorate often will permit them to teach in some capacity. Of course, many Baptist churches also fully affirm women in pastoral ministry. Again, it's up to the congregation.