Bias is again making the news. It exists in each of us, consciously or unconsciously.
Research from the Yale Child Study Center suggests that many preschool teachers look for disruptive behavior in just one place, waiting for it to appear.
The problem with this strategy (besides it being inefficient), is that, because of implicit bias, teachers are spending too much time watching black boys and expecting the worst.
Listen to this NPR recording from 2016.