Dear Substitute,

Welcome to my class!
Substitute lessons should've been provided for you (most likely they are on the teacher's desk).
Remind students that the usual privileges/procedures (known as DNA) are not applicable when a Sub is present. They should raise their hands and request permission. You should have received a copy of my schedule:

If substitute lessons are not provided, you may use the Emergency Lessons:
- They are located on the small shelf next to the teacher's desk. 
- Online they are available here: US History and Research 
If you have any questions, I may be reached at (352) 234-6082