A diverse teacher workforce benefits all students, particularly students of color. It is possible to measure real gains made by Black students who experience even just one Black teacher, in how much they learn and the rate in which they graduate, including from college. These benefits extend beyond those students who have long been disadvantaged by the nation's education system. A more diverse teacher workforce provides an important first lesson for all children: that the world outside their immediate neighborhood is a tapestry of cultures, traditions, and experiences to embrace, not to be feared or mistrusted. Yet the lack of diversity in the teacher workforce remains a persistent challenge.