AdvertisementTeaching Teachers In San Francisco, Calif.August 24, 2012Midhun M. JosephfacebookEmailTeacher Carrie Sanderson in her classroom at El Dorado Elementary school in Visitation Valley, San Francisco. (Courtesy of SFTR)
Teacher Carrie Sanderson in her classroom at El Dorado Elementary school in Visitation Valley, San Francisco. (Courtesy of SFTR)