Gail Chapman is the ECS Director of National Outreach.  She is also co-author of Exploring Computer Science, has extensive experience with the ECS model of Professional Development, and was instrumentally involved in its design and instruction. Prior to joining the ECS team, Gail was the Director of Leadership and Professional Development at the Computer Science Teachers Association. She taught high school mathematics and computer science, including AP Computer Science, for 15 years and subsequently worked on the AP Computer Science program at both ETS and College Board.