Employees must keep the weapon concealed and employees who legally use a concealed weapon on school grounds do so in their individual capacities, not their scope of employment.
I approve of this. Why should people not have the right to self defense in a school zone? Moreover, why should students who would create a Columbine-style incident have free reign to do so? If those students don't know who is carrying a weapon, it will stand as a deterrent to any such incidents. Personally, I'm a firm believer in Heinlein when he said, "An armed society is a polite society."