Kathryn I. Henderson is an Assistant Professor of Bicultural-Bilingual Studies in the School of Education at The University of Texas at San Antonio, USA. Here research interests include language ideologies, language policy and dual language bilingual education programs. Deborah K. Palmer is a Professor of Educational Equity and Cultural Diversity in the School of Education at the University of Colorado Boulder, USA. Her research interests include bilingual education policy and politics, critical additive bilingual education, translanguaging, teacher preparation for linguistically/culturally diverse teaching contexts, language, power and identity, and bilingual teacher leadership/agency.