Yvonne Freeman, Ph.D. and David Freeman, Ph.D. are professors emeriti at The University of Texas Rio Grande Valley. Both are interested in effective education for emergent bilinguals. They have worked extensively in schools in the U.S. They have also worked with educators in Ecuador, Mexico, Colombia, Venezuela, Costa Rica, Argentina, Uruguay, Hong Kong, India, Indonesia, Lithuania, Mallorca, and Sweden.           

The Freemans have authored books, articles, and book chapters jointly and separately on the topics of second language teaching, biliteracy, bilingual education, linguistics, and second language acquisition. Their most recent books are Between Worlds: Second Language Acquisition in Changing Times 4^th edition (2021), Equitable Access for English Learners Grades K–6: Strategies and Units for Differentiating Your Language Arts Curriculum, (2020), Dual Language Essentials for Teachers and Administrators 2nd edition (2017), ESL Teaching: Principles for Success 2nd edition (2016), and Essential Linguistics: What Teachers Need to Know to Teach ESL, Reading, Spelling, and Grammar, 2nd edition (2014).