The purpose of this study was to ascertain if preservice elementary teachers could exhibit an increase in businesslike behavior in their classroom interactions with pupils without negatively affecting teacher warmth, after undergoing a training intervention focused specifically on businesslike behavior. Previous studies indicated a positive correlation between such behavior and student achievement. It was hypothesized that businesslike teacher behavior would not result in a decrease in the level of teacher warmth, and could possibly produce an increase. The subjects of this study participated in a training program planned to develop four behaviors: (1) seriousness; (2) deliberateness; (3) goal orientedness; and (4) organization. Following this program, the participants were observed to determine what effect such training had upon their personal characteristics of warmth and friendly interaction with students. The data demonstrated that it is possible to train preservice teachers to increase their observable level of businesslike teaching behavior, and that an increase in this behavior has no observable adverse effect on the level of teacher warmth. (JD)