My situation - looking for ideas!

[pegcityone]

Hi everyone.
I've been using this site for awhile but decided to give the forum an actual go.

So my situation is this, I'm a full-time Junior High School teacher and teach an adult Eikaiwa class once a week. During my regular hours, I generally act as an assistant to a teacher who does most of the lesson planning and what not.

For the last year, I've been teaching an adult English conversation class solo, on my own, once a week. Thus far, I've been fairly successful maintaining everyone's interests by breaking my first year up in to simple conversation units - cooking, holidays, travelling, directions, etc. I've always tried to keep the topics broad as my class ranges from almost no English ability to conversational fluency, and from 16 to 55 years old. This I believe is my best bet at maintaining everyone's interest and not making any students feel left out or left behind.

But coming into my second year, I feel like I've exhausted simple topics that can work across the spectrum of the class and I've started to feel the class could use some direction. I've thus far tried to tie in every new vocabulary or topical set with some new grammar points but I need any idea of where I should be heading. I maintain some regular activities with the class because they're simple and everyone seems to enjoy them - BINGO, song translation, and simple games. This helps keep the classes easy. I also just began teaching an idiom a week to increase students colloquial speaking ability.

What I'd like are some online resources or advice from a more experienced teacher as to how I should design an overall picture for where the class should be lead. It's difficult due to the demographics of the class, but figured someone here would have some ideas.

I'm not a trained teacher (majored in Advertising) and would appreciate any pointers and resources that can help me create classes with a starting and ending point in mind.

Sorry if this message is all over the place, but I'm just writing as it comes to me.

Cheers and thanks for your help.