Prof. Peter I. De Costa

Prof. Peter I. De Costa is a distinguished scholar in the field of applied linguistics and currently serves as a Professor of Applied Linguistics at Michigan State University, United States. He is internationally recognized for his research contributions to second language acquisition, language education, TESOL, and critical applied linguistics. His academic work explores the complex relationship between language learning, identity, emotion, social context, and issues of power within multilingual and educational environments. His research interests include second language learner identity, language teacher identity, emotions in language learning and teaching, translanguaging, language policy, and research ethics in applied linguistics. Prof. De Costa has contributed extensively to the understanding that language learning is not only a cognitive process but also a social practice shaped by cultural, institutional, and ideological factors. Prof. De Costa has authored and edited numerous scholarly publications addressing contemporary issues in applied linguistics, including language teacher development, critical perspectives on language education, and ethical approaches to language research. His work has influenced researchers and educators by encouraging more socially responsible and context-sensitive approaches to language teaching and research. Prof. Peter I. De Costa

Prof. Peter I. De Costa

Michigan State University

Biography

Prof. Peter I. De Costa is a distinguished scholar in the field of applied linguistics and currently serves as a Professor of Applied Linguistics at Michigan State University, United States. He is internationally recognized for his research contributions to second language acquisition, language education, TESOL, and critical applied linguistics. His academic work explores the complex relationship between language learning, identity, emotion, social context, and issues of power within multilingual and educational environments.

His research interests include second language learner identity, language teacher identity, emotions in language learning and teaching, translanguaging, language policy, and research ethics in applied linguistics. Prof. De Costa has contributed extensively to the understanding that language learning is not only a cognitive process but also a social practice shaped by cultural, institutional, and ideological factors.

Prof. De Costa has authored and edited numerous scholarly publications addressing contemporary issues in applied linguistics, including language teacher development, critical perspectives on language education, and ethical approaches to language research. His work has influenced researchers and educators by encouraging more socially responsible and context-sensitive approaches to language teaching and research.

In addition to his research activities, Prof. De Costa actively contributes to the international academic community through journal editorship, conference participation, and professional service in applied linguistics organizations. His scholarship has established him as one of the influential contemporary researchers advancing critical and socially engaged perspectives in second language education and applied linguistics.