Authors & Presenters

Maren Powers is an award-winning teacher, instructional coach and author. Because of her experience as a practitioner, she has learned how to do the work successfully. Maren is passionate about helping other educators implement, coach, and lead through the PLC process.

Carol Rothenberg has worked with elementary and secondary schools through the New Arrival Center for the San Diego Unified School District, training teachers and administrators on effective programs and instruction for English learners.

Shawn Slakk, Chief Learning Officer for ABCDS&S Consulting, works with teachers, administrators, schools, and state agencies to offer strategies and support for multilingual learners and their classmates, in grades K–12 and adults.

Lisa Tartaglia is a high school assistant principal in Loudoun County Public Schools in Virginia. She has been an educator since 1994 and has experience as an elementary classroom teacher, reading specialist, and high school literacy coach.

Maria N. Trejo, EdD, is a consultant who provides training, coaching, and instructional leadership support. She also designs professional development events, webinars, and international teacher exchanges.

Kathy Vergara, EdD, is an experienced educator dedicated to serving and improving educational outcomes for multilingual learners and their families. She focuses on designing and implementing curriculum for bilingual, dual language, and ESL programs in grades preK–12.

Darlyne de Haan, EdD, is an instructional specialist for the New Jersey Department of Education, where she provided professional development to over 30 school districts labeled as either in need of improvement or a failing school.