40 experienced and inexperienced teachers, 20 male and 20 female, were observed during free play perios in preschool classes. Male teachers gave more favorable comment than female teachers, and also more physical affection. Male teachers also joined the play of the children more than female teachers. Female teachers interacted less than male teachers. Experienced teachers initiated behavaiors, directed, gave information, asked and answered questions, and helped the child more than inexperienced teachers. Expereinced teachers interacted more with boys and girls when they engaged in feminine-preferred activities, with no difference between male and female teachers in this regard. Inexperienced teachers of both sexes interacted more with boys engaging in masculine-preferred activities and girls engaging in feminine-preferred activities. It was suggested that the male stereotype and the school environment are less congruent than the female stereotype and school, and that experienced teachers encourage children to engage in school-type activities.