While entering class subjects and teachers you can keep checking the teacher workloads.
Obviously a teacher's workload may not exceed the number of periods in the school week.
You can display the teachers in identification order, name order or workload order by
clicking on the buttons above the relevant columns. Clicking again reverses the order.
The ordering capability is common to most screens.
Clicking on a teacher in the list causes a display of that teacher's specific classes,
subjects and number of periods.