Angela Estrella is a Professional Development Associate and Instructional History Coach for the Hollyhock Fellowship Program at the Center to Support Excellence in Teaching. In addition to her work at Stanford, Angela works part-time as a professional development facilitator for Overfelt High School in San Jose and is a Teacher in Residence for Imagine K12, an incubator for educational technology startups. Prior to joining CSET, Angela taught history for 9 years and served as an educational technology mentor and instructional coach.