A few steps
Whole house
Keep the records
What the state wants on file, and where each one lives.
1. Record of teaching hours
2. Curriculum record
3. Yearly progress report or test score
4. The signed notice the school sends back
One page that shows what you did, in case anyone ever asks. It fills in from your ticks.
This is a summary of public law, not legal advice. Requirements change, so always confirm with your state before you file.