About the Author
John SanGiovanni is a mathematics supervisor in Howard County, Maryland. There he leads mathematics curriculum development, digital learning, assessment, and professional development for 41 elementary schools and more than 1,500 teachers. John is an adjunct professor and coordinator of the Elementary Mathematics Instructional Leader graduate program 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 and currently serves on the Board of Directors for the National Council of Teachers of Mathematics. Dr. Eric Milou is a professor of mathematics at Rowan University in Glassboro, NJ. Dr. Milou has taught at Rowan for the past 20 years and served six terms as the President of the Rowan University Senate from 2007 to 2013. He previously served as President as the Association of Mathematics Teachers of New Jersey, the program chairperson of the 2007 NCTM annual meeting and has extensive speaking experience on standards based reform in mathematics. He is one of the authors of digits, EnVisions 6-8 and EnVisions A|G|A (published by Pearson) and was the recipient of the Max Sobel Outstanding Mathematics Educator Award in 2009.