Sadie Skiles Oakland Technical High School Sadie Skiles teaches biology and biotechnology at Oakland Technical High School. In addition to teaching high school for the last three years, Sadie taught 8th grade physical science at Kennedy Middle School in Redwood City. Before becoming a teacher, Sadie spent three years as a Research Associate in plant, soil, and atmospheric science for the Natural Resources Ecology Lab at Colorado State University. Sadie was accepted into the inaugural cohort of teachers in the Hollyhock Fellowship Program at Stanford University and in 2015 joined Trellis Education as a mentor teaching fellow.