Sarah Hemminger is a social entrepreneur, scientist, and co-founder of Thread, a nonprofit that engages underperforming high school students confronting significant barriers outside of the classroom by providing each one with a family of committed volunteers and increased access to community resources. Sarah has fourteen years of experience in nonprofit management and expertise in the development, expansion, and replication of innovative, paradigm-shifting models of forming relationships across lines of difference between high school students, volunteers, and collaborators. She was awarded fellowships from Ashoka, Echoing Green Foundation, Open Society Institute, and the Albert Schweitzer Fellows Program, which support social entrepreneurs with innovative ideas. In 2010, Sarah received her Ph.D. in Biomedical Engineering from the Johns Hopkins University for her work on the role of the cerebellum and the primary motor cortex on the time scales of consolidation of motor memory. She received the prestigious Siebel Scholars Award for outstanding work in the field of technology and engineering. Her research was published in the Journal of Neuroscience, Journal of Neurophysiology, and Cerebral Cortex and she has lectured internationally on her work. Sarah received her undergraduate degree from the Johns Hopkins University in 2002, and prior to pursuing her PhD, she worked as an engineer for Medtronic XOMED.