Sylvia Celedón-Pattichis is an associate professor of bilingual and mathematics education at the University of New Mexico, where she prepares elementary preservice bilingual/ESL teachers to teach mathematics and also teaches graduate courses in bilingual education. Her research focuses on linguistic and cultural influences on the teaching and learning of mathematics, particularly with ELLs. She was a co–principal investigator of the NSF-funded Center for the Mathematics Education of Latinos/as (CEMELA), and she approaches the book from the personal perspective of a former English language learner.
Nora G. Ramirez is a consultant working with educators in rural, urban, and suburban school districts. She taught middle school and high school mathematics before working at Arizona State University and Maricopa Community Colleges as a professional developer, mathematics specialist, and principal investigator for several NSF-funded projects. A founding member and past president of TODOS: Mathematics for ALL and a past member of the NCTM Board of Directors, she focuses on promoting equity, conceptual understanding, teaching ELLs, and making instructional decisions based on research findings and student thinking.
