Amador, Olivia: - Olivia Amador Valerio, EdD, was a bilingual teacher in an elementary school, as well as a principal, in San Diego. She holds teaching and administrative services credentials in California and earned her doctoral degree in educational leadership from San Diego State University. One of her most notable accomplishments while she served as a principal with the Chula Vista Elementary School District was receiving the National Center for Urban School Transformation (NCUST) Gold award for impact on student learning. Olivia focuses her efforts on improving teacher clarity and ensuring that all students have access to high-quality instructional experiences. Olivia is a co-author of The Teacher Clarity Playbook. She is currently a full-time professional learning consultant for Corwin.

Frey, Nancy: -

Nancy Frey is professor of educational leadership at San Diego State University and a leader at Health Sciences High and Middle College. Previously, Nancy was a teacher, academic coach, and central office resource coordinator in Florida. She is a credentialed special educator, reading specialist, and administrator in California. She is a member of the International Literacy Association's Literacy Research Panel. She has published widely on literacy, quality instruction, and assessment, as well as books such as The Artificial Intelligences Playbook, How Scaffolding Works, How Teams Work, and The Vocabulary Playbook.

Assof, Joseph: -

Joseph Michael Assof is a high school and community college mathematics teacher and the math department chair at Health Sciences High and Middle College in San Diego, CA. He is also an educational consultant and presents internationally on a wide array of topics including teacher clarity, mathematics teaching and learning, visible learning, and more. Joseph coauthored Teaching Mathematics in the Visible Learning Classroom, High School, Teaching Mathematics in the Visible Learning Classroom, Grades 6-8, and The Teacher Clarity Playbook, and his classroom is featured in a number of Visible Learning for Mathematics, Grades K-12 videos. Joseph holds bachelor's and master's degrees in mathematics and a doctorate in Educational Leadership with an emphasis in Mathematics Teacher Leadership. Mathematics and mathematics education are Joseph's second passion--his first being his two beautiful boys, Joseph Fred and Jamie Beau.

Fisher, Douglas: -

Douglas Fisher is professor and chair of educational leadership at San Diego State University and a leader at Health Sciences High and Middle College. Previously, Doug was an early intervention teacher and elementary school educator. He is a credentialed teacher and leader in California. In 2022, he was inducted into the Reading Hall of Fame by the Literacy Research Association. He has published widely on literacy, quality instruction, and assessment, as well as books such as Welcome to Teaching, PLC+, Teaching Students to Drive their Learning, and Student Assessment: Better Evidence, Better Decisions, Better Learning.