At ds's previous school we just turned up & queued to see his teachers.
At his new school it's online booking 5 min slots. What I'm not sure of is what gap to leave in between. Do I leave a 5 min gap so for example have 5pm 5.10pm etc or should I play it safe & leave 10 mins between appointments.
The latter means I will be there from 4.30 - 7pm.