How do you get into photography for schools?

I'm looking into starting small with some pre-schools who only have a few classes to get my feel for it. However what is the actual process of getting in with them? Any info from start to finish of becoming a school photographer is what I'm looking for. Once I've got that info, ill look more into the different process of the actual photo shoots. via /r/photography http://bit.ly/2J9yy0W