School system equivalences
| Age | Belgium | France | UK | USA | IB |
|---|---|---|---|---|---|
| 5-6 years old | pre-school | Grande Section maternelle | Year 1 | KDG | Pre-PYP |
| 6-7 years old | 1ère primaire | CP: Cours préparatoires | Year 2 | Grade 1 | PYP1 |
| 7-8 years old | 2ème primaire | CE1: Cours élémentaires | Year 3 | Grade 2 | PYP2 |
| 8-9 years old | 3ème primaire | CE2: Cours élémentaires | Year 4 | Grade 3 | PYP3 |
| 9-10 years old | 4ème primaire | CM1: Cours moyen 1ère année | Year 5 | Grade 4 | PYP4 |
| 10-11 years old | 5ème primaire | CM2: Cous moyen 2ème année | Year 6 | Grade 5 | PYP5 |
| 11-12 years old | 6ème primaire | 6ème Collège | Year 7 | Grade 6 | MYP1 |
| 12-13 years old | 1ère secondaire | 5ème Collège | Year 8 | Grade 7 | MYP2 |
| 13-14 years old | 2ème secondaire | 4ème Collège | Year 9 | Grade 8 | MYP3 |
| 14-15 years old | 3ème secondaire | 3ème Collège | Year 10 | Grade 9 | MYP4 |
| 15-16 years old | 4ème secondaire | 2nde Lycée | Year 11 | Grade 10 | MYP5 |
| 16-17 years old | 5ème secondaire | 1ère Lycée | Year 12 | Grade 11 | DP1 |
| 17-18 years old | 6ème secondaire | Terminale Lycée | Year 13 | Grade 12 | DP2 |
