Why not: The student needs to be able to focus entirely on the teacher, and the teacher needs to be able to focus entirely on the student. Parental interference, no matter how well-intentioned, interrupts the lesson flow, takes up precious lesson time, and causes student and teacher to lose their train of thought.

What to do instead: Listen intently to the lesson with a goal of understanding the concepts and the manner of presentation so that you can provide meaningful guidance at home. You should ask questions about anything you don’t understand at the end of the lesson or in an email or with a phone call later that evening.