Mark Sass has been a history teacher in the Adams 12 Five Star School District since 1995. In 2000, he was part of the leadership team that helped open Legacy High School, where he currently teaches American History. Mark currently teaches part-time (.4FTE) and spends the rest of his time as the Executive Director for Teach Plus Colorado.
Mark runs a policy fellowship with teachers from across the state. Over five years as ED he has built a cadre of policy savvy teachers who have advocated for the profession. Mark was a 2014 Hope Street Group National Teacher Fellow. He was also a 2015 U.S. Department of Eduction Classroom Teacher Ambassador Fellow.