Sean Nank, PhD, received the Presidential Awards for Excellence in Mathematics and Science Teaching (PAEMST). Sean is a Distinguished Teacher in Residence and adjunct professor at California State University San Marcos, a full professor at American College of Education, and works for Oceanside Unified School District. He has published multiple books, articles, and K-12 math curricula. He has worked in various positions with the United States Department of Education, White House Office of Science and Technology Policy, National Science Foundation, California Department of Education, California Commission on Teacher Credentialing, San Diego County Office of Education, and Smarter Balanced Assessment Consortium. Sean is the Member and Affiliate Relations Committee (MARC) representative in the Western 2 region for NCTM. He was appointed to represent the USA at the International Congress on Mathematical Education in Korea as the mathematics assessment expert, which culminated in a congressional address as to the current state of mathematics education. Sean is a Facilitator for Illustrative Mathematics and LearnZillion. He is starting his second term as President of the Greater San Diego Mathematics Council and continues to consult for various districts across the country. His current research agenda includes how teachers negotiate the balance between the procedural, conceptual, and application via technological resources.