When the teaching day is over, put a 30 on it. For many years reporters used the number 30 To indicate the end of type written print. Teacher, use the number 30 to indicate the end of your day, when the day is over end it. We cook dinner, assist our children with their schoolwork, connect with our significant other, but in the cave of our mind our teaching work works on us.

While engaged in other towns, we think to ourselves, “How should I word that email I need to write in response to that parent?” We muse about tomorrow’s lesson, “If I add a few questions to that lesson will students understand the concept more clearly?” Or we say to ourselves, “Did I speak to harshly to Bill after he interrupted my lesson for the fifth time in five minutes?”

Teacher, learn to end your day when it’s over. Learn to put a 30 on it.