This document summarizes 3 articles about teachers and classrooms. The first article discusses how teachers from different cultures can recognize teaching styles and classroom behaviors across cultures based only on body language and facial expressions. The second article examines how black students are rated by white and black teachers and finds they often receive lower scores, influenced by cultural differences. The third article views the classroom as preparing students for the workforce by teaching a "hidden curriculum" of behaviors like obedience, order, and work ethic.