Use 'report to' when describing giving information to someone who can make decisions based on that information. I report to the headteacher about student behavior.
Pro Tip 2/3
Regular Check-ins
Frequently 'report to' someone to provide updates at set intervals, like daily or weekly. Consultants often report to their clients every Friday.
Pro Tip 3/3
One-way Communication
'Report to' involves one-sided communication to a higher-up, not a conversation. Interns report to their mentors, but they don't always receive immediate feedback.