How can I patent and sell my awesome vocabulary development curriculum?

I am a 2nd and 3rd grade teacher and my colleagues and I have created a vocabulary development curriculum that I think is brilliant. We are still revising and adding to it, but in essence the idea is formed. It worked wonderfully with our students last year, and we are working on plans to make it even more effective this year. One of my colleagues suggested, half-joking, that we should patent and sell it. We all laughingly agreed, but it started me thinking…why not? I have no idea how one would go about starting a process like that. Whom would I contact? What would I prepare? What questions would I ask?