Commentary: We make a difference when we make a difference for one

As a high school math teacher, I work with a lot of numbers. My students and I divide them, multiply them, graph them, convert them into scientific notation. Numbers are part of our daily routine. And the numbers follow me home as well.When I turn on the news or log in to social media, I’m immediately bombarded each day with numbers, many of them describing children. Seventeen children killed in a Florida school, 2,000 children separated from their parents at the border, 90,000 Indian chil