My mother is an elementary school principal in California, and according to her the state provides pacing schedules that regiment out what a teacher is supposed to be teaching on any given day, and how many minutes they are supposed to spend on any given lesson. How stringently this schedule gets enforced varies by school district, though. Middle and High schools are supposed to be less regimented, though she has no direct experience with them.
My mother is an elementary school principal in California, and according to her the state provides pacing schedules that regiment out what a teacher is supposed to be teaching on any given day, and how many minutes they are supposed to spend on any given lesson. How stringently this schedule gets enforced varies by school district, though. Middle and High schools are supposed to be less regimented, though she has no direct experience with them.