My primary research interest is Quechua first language acquisition, especially the acquisition of morphosyntax and argument structure. I have carried out fieldwork in the Peruvian Andes of Arequipa and Ancash, and I continue collecting Quechua child language data in Cuzco, Peru. I am also interested in second language acquisition and bilingualism, and, since coming to UTEP, I have studied school-aged children’s ability to interpret figurative language in English and Spanish. In addition to these research pursuits, I have directed foreign language programs (English and Spanish) in the U.S. and in Peru, where I lived for twenty years. I have also given workshops and courses for language teachers in the U.S., Peru, and Ecuador.