Hola Chupacabra! :)
1. Decide the type of class you want to teach (drawing, painting, oil painting, watercolors, etc.)
2. Find a place to hold the classes that will be free or charge you a minimum fee (which you can pay when you get the students to pay.) Try: community centers, churches (good time to join one if you don’t go to one), schools, gymnasiums. art centers, Hispanic/African/Native American and any other ethnic centers…and if that doesn’t work. You can meet outside in a park! That won’t cost and you can get people to draw and paint things outside! Or meet in a covered area in a park (in case of rain).
3. People/Places to approach: Advertise on Craigslist for classes, put up flyers, advertise in the Penny Saver. But guess what? A great, great place to get a class going is to approach RETIREMENT HOMES…especially the Jewish homes, the Christian Science homes, the Baptist homes, the private assisted living homes where retirees still can get around and have their own apartments. The budgets on some of these places are HUGE and they like to have people come in and teach art. You can also approach schools to do after-school programs. But most community centers have classes and you just sign-up to teach there!
4. Network! Tell everyone you meet that you are teaching.
Make sure that you research the going rate for classes, too, and charge accordingly (but don’t undersell yourself). And be organized (if you can) students like to have some sort of routine. You want them to tell everyone else..so that you can build a following as an instructor.
Hope some of these ideas helped…and I wish you all the best of luck and prosperity with your venture!