John SanGiovanniJohn SanGiovanni is an elementary mathematics supervisor in Howard County, Maryland, where he oversees mathematics curriculum, digital learning, assessment, and professional development. He is the coauthor of the bestselling Puttng the Practices Into Action and the Mastering the Basic Math Facts series. John is an adjunct instructor and coordinator of the Elementary Mathematics Instructional Leader graduate program at McDaniel College, as well as a national consultant for curriculum and professional development. A frequent speaker at national conferences, John also currently serves on the Board of Directors for NCTM. Follow him on Twitter: @JohnSanGiovanni Read More Read Less