Identify the affected periods
Start with the absent teacher’s timetable and identify each affected class and period. This provides a concrete list of disruptions to resolve.
Review suitable alternatives
Check teacher availability, subject suitability and existing workload before selecting a substitute. Avoid assuming that an empty period always means a teacher is available.
Approve and communicate the change
Keep the approved substitution recorded and make sure the relevant teachers and coordinators know what has changed. Review any remaining gaps before the school day begins.