at the high school I formerly worked at, after the Columbine Tragedy, we re wrote our emergency management plan...one of the positive practical outcomes was to preposition emergency trauma supplies in our out classrooms, and the quadrants of the building...pressure bandages, Kerlix gauze, petroleum gauze, and gloves are easy to store in Rubbermaid bins...we were fortunate that we had two RN's on staff.... one problem we were not able to address was adequate communication... at a high school, there is always a shortage of portable radios... I argued for a classroom phone system (Siemens made one at the time), that had an "all call" capability with a 2.7GHz portable phone, that a teacher would grab as they went out the door for a building evacuation...and would give multi level communication in a crisis... for you that are classroom teachers... wait till you have a building evacuation ,and the news helicopter shows up overhead... your school switchboard and local 911 call center will be flooded and immobilized... a "private" phone number that is not connected to the 911 system to first responders could be a life saver