Mr. Rivera was nominated to serve as the Secretary of Education on January 20, 2015. He most recently served as Superintendent of The School District of Lancaster, a position he held from 2008-2015. Under Rivera's leadership, The district developed and implemented a new curriculum, an aggressive professional development plan, and innovative teacher observation tools. These initiatives resulted in an increased graduation rate; notable improvements in math, science, and writing proficiency scores; and enhanced the level of participation from high-performing students in programs that help prepare them for college and other post-graduation opportunities. In September 2014, Rivera was honored by the White House as a Champion of Change for his efforts to transform urban education – one of ten recipients nationwide to receive the prestigious honor. He previously was a classroom teacher, staff member with the Philadelphia Federation of Teachers, assistant principal, principal, and executive director for the School District of Philadelphia. Rivera is a first generation college graduate and earned a Bachelor of Science degree from Pennsylvania State University, a Master's degree in Education Administration from Cheyney University of Pennsylvania, and his Superintendent's Letter of Eligibility from Arcadia University.