https://www.mercurynews.com/2021/10/20/bay-area-school-districts-hit-hard-by-teacher-substitute-shortages/

San Jose High senior Jordan Fricke knows of one class that’s had a revolving door of three long-term substitute teachers so far this fall. Berkeley High School teacher Hasmig Minassian has seen a librarian supervise four classes because no one else was available. Logan Mengotto’s father said his son didn’t have a teacher in two classes the first week at Hercules High School.

Public schools throughout the Bay Area and the state are grappling with a spike in teacher absences and vacancies as schools have reopened, coupled with a shortage of substitutes, leading them to increase pay for subs, offer signing bonuses for new hires and ask other school and district staff members to take over classes.