Have you had any pedgogy classes yet? Have you studied various approaches to note reading, ie middle C approach, landmark/intervallic, multi-key?
Various methods tend to lean toward a particular note reading approach, although there may be various elements combined.
For example, John Thompson uses a middle C approach. Bastien is a multi-key (various 5 finger positions). Alfred is positional, but doesn't go through as many keys as quickly as Bastien. Faber's Piano Adventures and Hal Leonard are landmark/intervallic.
My preference is definitely Faber and Hal Leonard.
I know that you can receive a free teacher sampler pack from Hal Leonard.
Also, FJH (who publishes Faber's Piano Adventures) gives teachers a 40% discount if you order directly from FJH. So that's a great way to get some of their books and really get familiar with them.
If you can't find phone numbers or email addresses for these companies on line, just ask and I'll post them for you, if you're interested.
Oh, and I think I have a link in my bookmarks that will give you reviews of all the major publishers methods. I'll look for it and post it for you.