Hi Brookee,
I teach adults (18-60?). I am luck enough to have small groups, my largest group is 10 persons. Classes are 75 minutes once a week. I usually start by going around the room and asking students to talk about their week/weekend.
I have a VERY flexible teaching plan/style that allows me to change the focus of the lesson mid-course if I see the need. This allows me to spend time on grammar/vocabulary/customs when they come up and the question is sitting in the student�s head. However, it also means I have to be ready for almost anything--which gets easier with time/experience.
My general routine is "How was your week?", review homework and reteach any noted weak areas, introduce new material, close and answer questions, and handout homework if necessary. I try to keep my teaching routine so that students do as much talking as possible while in class (75 minutes a week isn�t much) and try to always remember that worksheets and reviewing homework are also a major part of the learning/teaching process.
With my advanced groups I love doing comprehension exercises where I give them and interesting article and we discuss it in class. I also tend to challenge them wih difficult homework that they haven�t had in class--my thoughts are it teaches them to work through language problems on their own. They have been surprisingly good and it has always sparked a lot of conversaaion in class about the difficulties and how they resolved them.
My less experienced groups tend to like visual aides (ie. flash cards, pictures, etc) and anectdotes told in both languages.
Hope it gives you some perspective,
Douglas