The increasing number of English language learning children in U.S. classrooms and the need for effective programs that support these children present a great challenge to the current educational paradigm. The challenge may be met, at least in part, by an innovative humanoid robot serving as a cultural broker that mediates collaborative interactions among young children who come from diverse cultural and linguistic backgrounds. The pedagogical design principles proposed in this article may help to create an equitable socio-technical learning context that embraces learner diversity.