John SanGiovanni is a best-selling author and nationally recognized leader in mathematics education. He works as a mathematics coordinator in Howard County, Maryland leading curriculum development, digital mathematics education, assessment, and professional learning. As an adjunct professor at McDaniel College, John is focused on developing mathematics specialists and teacher leaders. He also works as a national consultant providing professional learning for content, pedagogy, and curriculum design. John is a frequent speaker at state and national conferences. He is active in professional organizations serving on the Board of Directors for both the National Council of Teachers of Mathematics and the National Council of Supervisors of Mathematics.