In 1984, Denise A. Porter received a Bachelors of Science degree in Elementary Education from Iowa State University in Ames, IA. She taught elementary school for nine years, with five of the years as a Mathematics Specialist. In 1990, she earned a Masters of Education degree from the University of Houston. Ms. Porter worked as a Teacher-in-Residence with the University of Chicago School Mathematics Project (UCSMP) from 1993-1996. She was involved in the development of the first editions of Fourth, Fifth and Sixth Grade Everyday Mathematics. Since 1993, Ms. Porter has provided professional development to administrators, teachers, and parents in a wide variety of school districts, regarding the best practices of Everyday Mathematics and currently with the University of Chicago's Center for Elementary Mathematics and K-12 Science Education (CEMSE) and the Outreach Program for the Chicago Public Schools. Ms. Porter also currently serves as the Teacher-in-Residence for the Everyday Mathematics Grade Six, Third edition and author for various state editions.