Margo Gottlieb, Ph.D., is a staunch advocate for multilingual learners and their teachers. As co-founder and lead developer of WIDA at the University of Wisconsin-Madison in 2003, Margo has helped design and contributed to all the editions of WIDA’s English and Spanish language development standards frameworks and their derivative products. Being a bilingual teacher, facilitator, consultant, and mentor across K-20 settings, she has worked with universities, organizations, governments, states, school districts, networks, and schools in co-constructing linguistic and culturally sustainable curriculum and reconceptualizing classroom assessment policy and practice.

Margo’s passion has always been assessment in its many forms, starting with her dissertation, a K-12 multilingual test in Spanish, Lao, and English that integrated content and language. Since then, she was appointed to national and state advisory boards, served as a Fulbright Senior Scholar, and was honored by the TESOL International Association in 2016 for her significant contribution to the field. In her travels, Margo has enjoyed keynoting and presenting across the United States and in 25 countries. Having authored, co-authored, or co-edited over 100 publications, including 20 books and guides, Margo's 3^rd edition of her best-selling book, Assessing Multilingual Learners: Bridges to Empowerment, is the latest addition to her Corwin compendium.

Andrea Honigsfeld, EdD, is Professor in the School of Education at Molloy College, Rockville Centre, New York. Before entering the field of teacher education, she was an English-as-a-foreign-language teacher in Hungary (Grades 5–8 and adult) and an English-as-a-second-language teacher in New York City (Grades K–3 and adult). She also taught Hungarian at New York University. She was the recipient of a doctoral fellowship at St. John’s University, New York, where she conducted research on individualized instruction and learning styles. She has published extensively on working with English language learners and providing individualized instruction based on learning style preferences. She received a Fulbright Award to lecture in Iceland in the fall of 2002. In the past twelve years, she has been presenting at conferences across the United States, Great Britain, Denmark, Sweden, the Philippines, and the United Arab Emirates.

She coauthored Differentiated Instruction for At-Risk Students (2009) and co-edited the five-volume Breaking the Mold of Education series (2010–2013), published by Rowman and Littlefield. She is also the co-author of Core Instructional Routines: Go-To Structures for Effective Literacy Teaching, K–5 and 6–12 (2014), published by Heinemann. With Maria Dove, she co-edited Coteaching and Other Collaborative Practices in the EFL/ESL Classroom: Rationale, Research, Reflections, and Recommendations (2012) and co-authored Collaboration and Co-Teaching: Strategies for English Learners (2010), Common Core for the Not-So-Common Learner, Grades K–5: English Language Arts Strategies (2013), Common Core for the Not-So-Common Learner, Grades 6–12: English Language Arts Strategies (2013), Beyond Core Expectations: A Schoolwide Framework for Serving the Not-So-Common Learner (2014), Collaboration and Co-Teaching: A Leader’s Guide (2015), Coteaching for English Learners: A Guide to Collaborative Planning, Instruction, Assessment, and Reflection (2018), Collaborating for English Learners: A Foundational Guide to Integrated Practices (2019), Co-Planning: 5 Essential Practices to Integrate Curriculum and Instruction for English Learners (2022). She is a contributing author of Breaking Down the Wall: Essential Shifts for English Learner Success (2020), From Equity Insights to Action (2021), and Digital-Age Teaching for English Learners (2022). Nine of her Corwin books are bestsellers.

Tonya Ward Singer, M.F.A., is a professional learning leader with a deep commitment to ensuring diverse learners excel with rigorous expectations. She consults nationally helping K-12 educators realize new possibilities in language and literacy learning to close opportunity gaps for ELs and students in poverty.

Tonya has taught at multiple grade levels as a classroom teacher, reading teacher, and EL specialist, and has extensive experience helping school leaders transform learning at scale. Her choice work is supporting educators in launching and sustaining site-based, continuous inquiry around live lessons. She has been collaborating extensively with multiple districts developing, testing, and refining observation inquiry, the focus of this book.

An expert in pedagogy for linguistically diverse learners, Tonya has co-authored curriculum for international publishers including Scholastic, Longman and Oxford University Press. She thrives on leveraging research and innovation to solve educational challenges, and inspiring others to do the same.

Shawn Slakk is the CEO and Founder of ABCDSS Consulting Consortium and works with teachers, administrators, school & state agencies to offer strategies and supports for emergent bilinguals and their classmates both K-12 and adults. He is co-author and developer of new professional development sessions for all levels of educators, focusing on whole-school implementation, administrative support and coaching. As a former Certified WIDA Trainer and Title III SIOP Coach, Shawn brings a wide understanding of a variety of strategies and how they relate to ELs, language acquisition and lesson delivery.

He served as the Rethinking Equity and Teaching for English Language Learners (RETELL) Coordinator for the Massachusetts Department of Elementary and Secondary Education where he and his team were responsible for developing, implementing, training trainers and evaluating a Sheltered English Instruction endorsement course for administrators and classroom teachers. The RETELL endorsement is required in Massachusetts to obtain or retain an educator license with more than 40,000 teachers and administrators earning this endorsement. Throughout his career, Shawn taught ESL in grades K-University, Spanish across all grade levels and curriculums, and even once taught Japanese to K-2 students. He has served as an elementary and middle school administrator, served at the Central Office level as a district coach and as a state level coordinator. He started his teaching career teaching Adult ESL at Spokane Community College in Washington state.

Shawn’s curriculum and instruction doctorate from the University of Virginia will focus on supporting the needs and instruction of additional-language learners and teachers in reading and writing. He holds an MA in TESOL from Eastern Washington University, a Master of School Administration from the University of North Carolina at Greensboro, and a bachelor’s in English and Spanish education from Whitworth University.

Dr. Debbie Zacarian, founder of Zacarian & Associates, provides professional development, strategic planning, and technical assistance for K-16 educators of culturally and linguistically diverse populations. She has served as an expert consultant for school districts, universities, associations, and organizations including the Massachusetts Parent Information Resource Center and Federation for Children with Special Needs.

Debbie has worked with numerous state and local education agencies and written the language assistance programming policies for many rural, suburban, and urban districts. Debbie served on the faculty of University of Massachusetts-Amherst where she co-wrote and was the co-principal investigator of a National Professional Development grant initiative supporting the professional preparation of educators of multilingual learners. Debbie also designed and taught courses for pre- and in-service administrators and teachers on culturally responsive teaching and supervision practices, multilingual development, and ethnographic research. In addition, she served as a program director at the Collaborative for Educational Services where she provided professional development for thousands of educators of multilingual students and partnered with Fitchburg State University in co-writing and enacting a National Professional Development initiative that supported STEM education. Debbie also directed the Amherst Public Schools bilingual and English learner programming where she and the district received state and national honors.

The author of more than 100 publications, her most recent professional books include: Beyond Crises: Overcoming Linguistic and Cultural Inequities in Communities. Schools and Classrooms; Responsive Schooling for Culturally and Linguistically Diverse Students; Teaching to Empower: taking action to foster student agency, self-confidence, and collaboration; and Teaching to Strengths: Supporting Students living with Trauma, Violence and Chronic Stress.