Q:

Standard Jazz teaching repertoire

I am a classically trained pianist with many years of teaching experience in the classical repertoire. I would like to expand my horizons and become more knowledgeable about jazz and pop piano music and be able to share this with my students. Where can I gain this knowledge?

A:

The first thing you'll need to do is to understand jazz yourself. I'm sure you realize that. But what I mean is that I don't think it would be very useful to just have some recommended repertoire or a curriculum without first understanding it deeply enough yourself to be able make those decisions yourself.
Learning to play jazz yourself is a great way—and in my opinion the best way—to begin understanding the concepts you'd be teaching. But either way here are some things I'd work on understanding and/or playing before you dive in to teaching it:

Listen to a lot of jazz and get it in your ear. Get used to the rhythm, the harmony, the melodies and the general form. For bonus points,  take it further and analyze and transcribe some of the things that you really like.
Learn some rudimentary history and some of the basics. Know the different styles. Know some song forms (rhythm changes, blues, modal, etc). Know the terminology (for example if somebody says "head" or "chorus").
Learn the harmony. While much of it will be familiar to you and you'll have a huge head start, you'll need to know the idiomatic differences that make jazz jazz. This especially important for piano given that whether you're playing solo or with a band, the pianist is the one covering much of the harmony.
Learn how to improvise (or at least how other people do). This a huge part of what jazz "is" and it's what people studying jazz end up putting most of their time into. It takes years to become an expert at this so don't worry about mastering it or anything. But I'd learn enough that you can get students started on it.
Put this all together by learning tunes. Learn a lot of standards and listen to a lot of jazz and the other parts I mentioned should naturally come along with it.

One thing I think you'll find is that there's a little less agreement on the right way to do things in jazz which makes it tough to recommend any canonical resource or body of work to work through. Most people learn through a variety of resources and by listening to and copying from jazz that they like.

