Bob Anderson, a history teacher at Trinity High School, preps his class for an upcoming quiz March 2. A map of the Yreka Union High School District hangs in Supt. The high school in Siskiyou County has been doing hybrid learning, with students on campus every other day. (Jason Armond / Los Angeles Times)Sitting at his desk behind a plexiglass barrier this month, Yreka Union High School District Supt. AdvertisementOn Greenfield’s wall hangs a map of the sprawling high school district, which stretches deep into the mountains.

Source: Los Angeles Times March 22, 2021 12:02 UTC