Make it possible for teachers to carry firearms, only if they have taken the same courses as a police officer.

I believe that teachers in elementary, high school, and college should be able to carry firearms, as long as they have taken the same courses that is required to become a police officer. The firearms should be concealed on the person during school hours until, they are being threatened. The teachers should also be evaluated to check for any mental conditions and their background should also be checked for a violent past (assault & battery). Even though I am a senior in high school, I would feel safer if my teachers were able to defend my fellow classmates. Thank you.