Primary and Middle Years Mathematics, 2nd edition

The late Dr John A. Van de Walle was a professor emeritus at Virginia Commonwealth University. He was a leader in mathematics education who regularly gave professional development workshops for K-8 teachers in the United States and Canada focused on mathematics instruction that engaged students in mathematical reasoning and problem solving. He visited and taught in many classrooms and worked with teachers to implement student-centred mathematics lessons. He co-authored the Scott Foresman-Addison Wesley Mathematics K-6 series and contributed to the original Pearson School mathematics program enVisionMATH. Additionally, John was very active in the National Council of Teachers of Mathematics (NCTM), writing book chapters and journal articles, serving on the board of directors, chairing the educational materials committee and speaking at national and regional meetings.

Dr. Karen S. Karp is a professor at John Hopkins University (Maryland). Previously, she was a professor of mathematics education at the University of Louisville for more than twenty years. Prior to entering the field of teacher education, she was an elementary school teacher in New York. She is the coauthor of Strengths-Based Teaching and Learning in Mathematics: 5 Teaching Turnarounds for Grades K-6; the three book series, The Math Pact: Achieving Instructional Cohesion within and across Grades; and the What Works Clearinghouse Practice Guide on Assisting Students Struggling with Mathematics: Intervention in the Elementary Grades. She is a former member of the board of directors for the National Council of Teachers of Mathematics (NCTM) and a former president of the Association of Mathematics Teacher Educators. In 2020, she received the NCTM Lifetime Achievement Award and in 2021 became a member of the United States National Committee on Mathematics Instruction. She continues to work in classrooms to support teachers in ways to instruct students with special needs in math.

Dr. Jennifer Bay-Williams is a professor at the University of Louisville. She is a leader in mathematics education, regularly working to support mathematics instruction. Beyond her work on this book and the related Teaching Student Centered Mathematics book series, Jennifer has written other books that focus on effective mathematics teaching. Most recently she has written a book series called Figuring out Fluency in Mathematics K-12 and Math Fact Fluency: 60+ Games and Assessment Tools to Help Learning and Retention. For teacher leaders, she has authored Everything You Need for Mathematics Coaching, and in the area of financial literacy, she authored a three-book series titled On the Money (a financial literacy book series). Over the years, Jennifer has taught elementary, middle, and high school in the United States and in Peru. She continues work with teachers around the world and in her local school districts to support their work. Jennifer has been actively involved in NCTM, NCSM, AMTE, and TODOS: Mathematics for All. Currently, she is serving as an associate editor for Mathematics Teacher: Learning and Teaching in preK-12.

Amy Brass is currently a doctoral candidate in mathematics education at Pennsylvania State University. She was previously a mathematics education lecturer at the University of Melbourne Graduate School of Education and also taught mathematics content and mathematics pedagogy classes at Arizona State University and the University of Cincinnati. Prior to entering the field of teacher education, Amy was a lower secondary maths teacher. Amy's research interests include people's understanding of large numbers and their magnitude, the relationships across mathematics, mathematics education and citizenship and mathematical modelling.

Dr Sharyn Livy is a Senior Lecturer of mathematics education in the School of Curriculum, Teaching and Inclusive Education, Faculty of Education, Monash University. Sharyn enjoys supporting both primary school teachers and pre-service teachers to enhance their skills and knowledge of best practices in mathematics education for primary school children. Her motivation is to enhance the quality of mathematics education for young students and equip teachers with the necessary skills and knowledge to achieve this goal. Her work involves conducting research, developing, and delivering professional development programs for teachers, and collaborating with schools and education partners to promote student-centred instructional approaches and collaborative mathematical learning experiences.