Some questions first:

1: Will your school become a shelter in any of the local response scenarios?

2: Does you school have comm gear? (2 meter Ham rig and antenna at least)

3: What is the level of community involvement? PTA? Students?

4: Does you school have a Gymnasium? Stadium? Porta-poties? Basement?

5: Is your area subject to Earthquake? Flood? Tornado?

6: Does your area of concern - Crises Planning - include criminal violence aka Colombine?

7: Do you have, on staff, EMT basic or better trauma trained individuals or teams?

sometimes the questions are more helpful than the answers.