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George Manthey is the Co-founder of Lead Learner Associates. He retired as the Assistant Executive Director, Educational Services, of the Association of California School Administrators (ACSA) after 40 years in education. He taught elementary school as a regular classroom teacher and taught both elementary and middle school students as a special day class teacher and resource specialist.

Todd Whitney is an Assistant Professor of Special Education in the College of Education and Human Development at the University of Louisville. He received his Ph.D. in Special Education with an emphasis in learning and behavioral disorders from the University of Louisville.

Mark Weakland is a consultant, teacher, writer, and musician living in western Pennsylvania. He is the creator of teacher resource books, nationally-presented seminars and workshops on literacy topics, award-winning music projects, and more than 70 books for children.

Oscar Corrigan is currently an administrator and director of English Language Learner program at Health Sciences High and Middle College (HSHMC) in San Diego, California. He has experience teaching middle school social studies, high school history, supervising teacher candidates, and implementing restorative practices.

Elise Burns has been a science teacher for 30 years, teaching physics, chemistry, biology, math, and earth science. Her work is characterized by trying new technology and approaches, in order to provide the best possible learning experience for kids.

Courtney Koestler is currently the Director of the OHIO Center for Equity in Mathematics and Science (OCEMS) and an Associate Professor of Instruction in the Patton College of Education at Ohio University. Courtney earned a BS in Elementary Education with a concentration in mathematics at Ohio University, an MA in Teaching at George Mason University, and a Ph.D. in Curriculum and Instruction at the University of Wisconsin.

Jennifer Ward is currently an Assistant Professor of Elementary and Early Childhood Mathematics Education  and Elementary Undergraduate Program Coordinator at Kennesaw State University. Jennifer earned a BS in Elementary and Special Education and a MA in Early Childhood Education from the State University of New York at Geneseo.

Maria del Rosario Zavala is an American-born daughter of Peruvian immigrants, a mother, and an Associate Professor of Elementary Education at San Francisco State University. She studied mathematics at the University of California, Santa Cruz almost(!) became a high school math teacher, before working in elementary education.

Mathew D. Felton-Koestler. I am currently an associate professor in the Department of Teacher Education at Ohio University in Athens, Ohio, where I primarily teach mathematics methods courses for future elementary and middle school teachers. Before coming to Ohio University, I was in the Department of Mathematics at The University of Arizona where I taught mathematics content courses for future teachers.

Cathery Yeh. My students, their caregivers, and the communities I have had the privilege to work with remind me daily that students’ identities and their sense of belonging shape learning. I started teaching 24 years ago, beginning my tenure in dual-language classrooms

Eva Thanheiser is a mathematics teacher educator. She is a professor of mathematics education at Portland State University in Portland, Oregon. Eva teaches mathematics content courses for elementary and middle school teachers. She contextualizes much of the mathematics content in social and political contexts.

David Frangiosa has spent 14 years as a high school science teacher, teaching biology, chemistry, physics and a number of science electives. Over that time, he has been a driving force in many initiatives across multiple districts. He developed, wrote curriculum for and taught two courses for a medical academy. As part of this initiative, high school students were placed in allied health internships at a local hospital.