Every teacher in America, at some point in their tenure as shepherds of today’s children, comes to understand that they may one day, without warning, and without any time to consider it, have to answer the question: Will they jump in front of bullets to protect a child? Other people’s children? Children they hardly knew? Children I hardly know. Until I knew them.I worked as a substitute teacher in a science class during the last portion of this year. I started substituting because I needed a ...