Greenhouse Growing

I need the boards help! Here is the story. I work in a high school in Philadelphia, PA. In the school, there is a greenhouse, but it has gone by the way side over the past ten years. And now, I want to bring it back to life. It has nothing in there except a couple of tables. The house is huge, I would say at least 40 ft. long with 15 to 20 feet class ceiling. Overall it is in good condition; no broken windows, the fans still work, and really clean. But here is the problem; I have no clue what to do. Where do I start and what to start on. I don't know. I am sure the Principal would back a sound plan. What is a sound plan for a greenhouse? I need help!

Wow, this greenhouse sounds utterly wonderful. :) Okay, to create a workable proposal to your principal, first I'd suggest figuring out exactly what your purpose for the greenhouse would be ... are you using it primarily to teach science classes for your high school students or will you be selling bedding plants to earn funds for community and school improvements? Once you've determined your goals, then it'll be a little easier to figure out the components that you'll need to get the greenhouse back up and running.

:)