Jennifer Bay-Williams is a professor at the University of Louisville (Kentucky). She is a leader in mathematics education, committed to supporting teachers and teacher leaders in their efforts to improve mathematics learning opportunities for every student. She has authored many articles in NCTM journals, and co-authored many books, including Math Fact Fluency (with Gina Kling and mentioned above); Everything you Need for Mathematics Coaching (with Maggie McGatha, Beth Kobett, and Jon Wray, and published by Corwin), Teaching Elementary and Middle School Mathematics: Teaching Developmentally, the related three book series, Teaching Student Centered Mathematics (with John Van de Walle, LouAnn Lovin, and Karen Karp), On the Money (financial literacy book series), Developing Essential Understanding of Addition and Subtraction in Prekindergarten-Grade 2, and Math and Literature: Grades 6-8. Jennifer is very active in national mathematics organizations, having served on the NCTM board of directors, Association of Mathematics Teacher Education (AMTE) secretary, president, and lead writer for the Standards for the Preparation of Teachers of Mathematics (AMTE, 2017), and now serving on the TODOS: Mathematics for All Board of Directors. She received her PhD from the University of Missouri (Columbia), taught K-12 mathematics in Missouri and Peru, and continues to work in schools around the globe supporting effective mathematics teaching.
John J. SanGiovanni is a mathematics supervisor in Howard County, Maryland. There, he leads mathematics curriculum development, digital learning, assessment, and professional development. John coordinates the graduate program for Elementary Mathematics Instructional Leadership at McDaniel College. He is an author and national mathematics curriculum and professional learning consultant. John is a frequent speaker at national conferences and institutes. He is active in state and national professional organizations recently serving on the Board of Directors for the National Council of Teachers of Mathematics and currently on the Board of Directors for the National Council of Supervisors of Mathematics. ?
C. David Walters is an assistant professor at Weber State University, a public university in Ogden, UT. His teaching responsibilities include mathematics content and methods courses for elementary and secondary teaching majors as well as creating professional development opportunities for local K-12 teachers. His research examines the development of mathematical knowledge for teaching and the ways in which teachers think about tasks as tools for rich mathematics instruction. He is active in professional organizations and has presented at conferences for the Research Council on Mathematics Learning, AMTE, and NCTM. He has served as a reviewer for the Journal for Research in Mathematics Education and for the National Science Foundation DRK-12 grant program. C. David also taught middle and high school mathematics for the New York City Department of Education
