If you are new to lighting or are from a discipline that may not be grounded in lighting, I'd recommend checking out B&H's on line catalogue just to get a idea of what goes into a kit. Check out eBay for used lighting gear - 2k goes a long way.
General set up is so...I don't know...general? Are you teaching E.N.G., high key, low key, noir, two point, three point, key-kick-slash? An Arri SoftIV kit will work well for many set ups, but then so will a Altman or even Lowell - for the budget you have.
So when you have an idea of what's available out there and mate that to what you're going to teach then check back in to this forum... if you have more questions, we'll be here to help.