Mariana Castro serves as Deputy Director at the Wisconsin Center for Education Research (WCER), a center committed to the improvement of educational outcomes for diverse student populations and to foster collaborations across academic disciplines and practitioners. She brings more than 28 years of experience in education as a former science teacher, a language specialist and a bilingual educator. Throughout her career, she has engaged in curriculum and instruction, teacher preparation and professional learning in the areas of science, language development and bilingual education. In her research, Mariana integrates her background as an educator, her passion for working with multilingual children, youth and their teachers, and her commitment for social justice. Over the last 14 years, her work has also involved policy work related to the education of multilingual learners, including the development of language proficiency standards in Spanish and English. Mariana has a Ph.D. in Curriculum and Instruction at the University of Wisconsin-Madison and a M.S. from the University of Wisconsin-Whitewater. She currently serves as the PI for research related to language practices of multilingual students, curriculum and instruction in dual language immersion programs, teacher professional learning and family engagement.