Douglas Fisher is professor and chair of educational leadership at San Diego State University and a teacher leader at Health Sciences High and Middle College. Previously, Fisher was an early intervention teacher and elementary school educator. In 2022, he was inducted into the Reading Hall of Fame by the Literacy Research Association. He has published numerous articles on reading and literacy, differentiated instruction, and curriculum design, as well as books such as Your Introduction to PLC+, Welcome to Teaching, How Feedback Works, Teaching Reading, and RIGOR Unveiled. Fisher loves being an educator and hopes to share that passion with others.Nancy Frey is a professor in educational leadership at San Diego State University and a teacher leader at Health Sciences High and Middle College. Her published titles include The Courage to Learn, The Art and Science of Coaching, How Scaffolding Works, and The Illustrated Guide to Visible Learning. Frey is a credentialed special educator, reading specialist, and administrator in California and learns from teachers and students every day.John Almarode is a professor of education at James Madison University. He was awarded the inaugural Sarah Miller Luck Endowed Professorship in 2015 and received an Outstanding Faculty Award from the State Council for Higher Education in Virginia in 2021. John started as a mathematics and science teacher in Augusta County, Virginia. John has written multiple books, book chapters, papers, and reports. His collaborative work with colleagues on what works best in teaching and learning includes How Tutoring Works, Visible Learning in Early Childhood, and How Learning Works, all with Corwin Press.Kierstan Barbee holds a doctoral degree in educational leadership and literacy from the University of Houston. She brings 20 years of education-related experience in PreK-12 settings. She has served as a secondary English Language Arts teacher, academic coach, and professional development supervisor in urban districts as well as a project manager of assessment for learning, which involved creating system-wide professional learning programming for central staff and campuses that promoted the spread of research- and evidence informed practices to maximize teaching and learning. Through an emphasis on relationship-building and human-centered design principles, Kierstan has coached PreK-12 principals, teachers, and district leaders on pedagogical practices that promote equity and student agency in learning. 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. 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.