now, for the meat and potatoes...
realize that all HS programs serve meals family style, and you will be required to eat with the children, up to 4 times a day. They may not tell you this. If you have a dietary problem or a concern with this type of arrangement, think about it carefully, or get your dr. note ready.
Realize that you will have at least one if not two assistants. Hopefully, you will have some adult supervision, as this has been a thorn in my side for decades. Understand they have already been in place, and probably have an attitude because THEY want to be lead teacher! Now you will come in and have to tell them what to do.
are you still there???
Are you physically able and willing to pick them up, sit down on the floor, and carry kids up to 40 pounds? You need to get around the room quickly. You will be indoors and outdoors, in hot sticky climates, bugs and all...every day.
Next, HS is all about paperwork. Documentation for everything. If it wasn't written down, it didn't happen. You may be lucky enough to be out of the stone age, and actually have things on computer. But, for the most part, be prepared to write and log alot of stuff!
You will go to trainings and workshops, so that is a good thing. But again, you must keep copies of all this stuff, to prove you attended.
You will also be expected to do home visits. If you are squeamish about visiting 12 people in a studio apartment, who want to serve you a meal, be warned...this is part of a job. You may be in an safe, middle class area, or you may be in the heart of the gang infested ghetto. This is the job you are applying for.
To get ready, go the the NAEYC website and read all you can. Just let
developmentally appropriate roll off your tounge each time you speak. That simply means, letting kids do what is natural for their age level. Threes tear, fours cut, and fives can cut things well, get it??
Now, get your paperwork in order. You need resume, current physical (less than 1 yr old), TB test, 3 reference letters, copy of your license and ss card, original transcripts, and original or copy of teaching certificate. Make 5 copies of your portfolio package. Be preapred for a group interview. You may want to hand out a packet to each participant. You may have your fellow teacher, supervisor, and a parent volunteer. You may get the job, and have to be interviewed again by parent committee

... all part of the process.
You need to decide if you want 10 month or year round. Go for 10 months if you can. year round is all day,
no breaks (except tradional holidays) until Christmas

, and kids take naps. Ten month jobs, are usually 2 half day sessions - 3 1/2 hrs, break then 2nd group. Usually no kids on friday! summers off. woohoo!
hope this helps!
good luck!!!