What is considered effective teaching varies across cultures, institutions, and disciplines. Concepts of effective teaching reflect the values and expectations of the educational culture and language in which it occurs. This study examines how participation in a course on intercultural communication affects the observable teaching behaviors of international teaching assistants (ITAs). The participants in this study consisted of 27 ITAs from nine countries enrolled in a research-intensive institution in Canada. Data were collected from videotaped microteaching components and teacher behavior inventories. The findings reveal that the ITAs developed interculturally competent teaching behaviors and improved their overall teaching performances, suggesting that intercultural training positively contributes to ITA teaching behaviors. (Contains 4 tables and 3 footnotes.)