How do K-12 teachers in the U.S. handle classroom management and parent communication?

Working in school education, the most exhausting part isn't always teaching; it's being caught in the middle of students, parents, and school procedures every day. I've encountered a situation where a student is uncooperative in class, the parent only replies to emails with 'He's fine at home,' and the school expects the teacher to keep detailed records. During actual class time, I have to look…