Maria Claudia Petrescu holds a PhD in Second Language Education from the University of Toronto (2014), as well as a MEd in Second Language Education from the University of Toronto and a BA in English Language and Literature from the University of Sibiu (Romania). She is currently a part-time lecturer in the School of Early Childhood Studies at Ryerson University, where she teaches courses on language development as well as cognitive and human development. She was previously a lecturer in Applied Linguistics in the Department of Language Studies at the University of Toronto Mississauga (2014-2016). Her research focuses on child language acquisition in multilingual contexts. More specifically, she examines the interaction between children’s L1 and L2/L3. Her current projects with research associates include: language interaction and development in trilingual children born in Canada; trilingualism in French immersion - predictors of reading success and reading difficulty in a third language context; and narrative and lexical acquisition in bilingual children.