This is a powerpoint that I have used yearly on the first day of school. Each year, I tweak the presentation to fit the grade level/class that I will be teaching, but the layout is the same.
Basically, this is a script for your first day. It is customizable but contains a framework for rules, procedures, and ice breakers to make your first day go very smoothly.
This is a framework- it cannot be used as is! There are a few places where grade level and teacher's name must be added, at a minimum.
Good luck on your first days, hopefully this PowerPoint will be helpful to you!