As used in this Title and Title 20, unless the context indicates otherwise, the following terms have the following meanings.
1. Aggregate attendance. "Aggregate attendance" means the total number of days of attendance for one school year in elementary and secondary schools of each regularly enrolled pupil resident of the municipality.
2. Membership. "Membership" means active participation in the program of a school from the date of enrollment to the time the student withdraws or is absent from the school for 10 consecutive days for reasons other than illness.
3. Teaching positions.
4. Pupil. "Pupil" means elementary or secondary school student.