The child's home page gets a “School” card: the lesson now, minutes to the bell and what comes next; after school — the next class (“Next: Maths tutor at 17:30”), and during a class — the class itself and how long is left. On the home-screen widget, during a lesson or a break, the lesson line replaces the battery and screen-time line (it can be turned off in the widget's settings).
“Tell me when school is over” — a notification on your phone around the last bell. It is turned on separately on each phone.