Calculateur de Dépense par Élève — Formule
## Understanding Student-Teacher Ratio
The student-teacher ratio divides total enrollment by the number of full-time equivalent (FTE) teachers.
### Formula
**Ratio = Total Students / FTE Teachers**
### Benchmarks
- Elementary: 15:1 or lower is ideal
- Secondary: 18:1 or lower
- National average (U.S.): approximately 16:1
Lower ratios generally correlate with better student outcomes, especially in early grades and for at-risk populations.
The student-teacher ratio divides total enrollment by the number of full-time equivalent (FTE) teachers.
### Formula
**Ratio = Total Students / FTE Teachers**
### Benchmarks
- Elementary: 15:1 or lower is ideal
- Secondary: 18:1 or lower
- National average (U.S.): approximately 16:1
Lower ratios generally correlate with better student outcomes, especially in early grades and for at-risk populations.
Exemple Résolu
A school has 450 students and 25 FTE teachers.
- Ratio: 450 / 25 = 18.0:1
- For 15:1 ratio: ceil(450 / 15) = 30 teachers needed
- Teacher gap: 25 - 30 = -5 (shortage of 5)