Teaching English composition and interpersonal communication concurrently enhances students' opportunities to learn and apply communication skills. Since many of these skills are common to both courses of study, not only is learning reinforced, but the skills can be presented and practiced in a variety of ways. More important, English composition and interpersonal communication are exceptionally suited to using the strengths while compensating for the limitations of the other course. A team-taught interdisciplinary course can magnify and enhance the learning of communication skills in the following ways. First, interpersonal communication is inherently relevant to students: they possess a lifetime of firsthand knowledge (such as self-concept, emotions, perceptions, and personal relationships). Teaching the process of writing provides students with a method to discover, cultivate, order, and express what they think and feel. Second, "thinking on paper" encourages students to develop a personal and profound understanding of their perceptions, feelings, attitudes, behaviors, and relationships. Third, to complete written assignments, students must selectively apply interpersonal communication skills, and test and modify their behaviors in contexts outside the classroom. Fourth, team-teaching provides added opportunities to respond promptly and appropriately to student needs, and to practice interpersonal skills in the classroom. Fifth, students gain confidence and proficiency as they comprehend, practice, and improve both interpersonal and composing skills in the varied and difficult tasks they set for themselves. (Author/HTH)