WIS Admission Grading
| Grade | Age |
| Pre – Nursery( crèche) | 12 months |
| Nursery | 2 years |
| Pre – Kindergarten (Nursery 2) | 3 years |
| Kindergarten | 4 – 5 years |
| Pre – school (KG 2) | 5 – 6 years |
| Grade 1 | 6 -7 years |
| Grade 2 | 7 -8 years |
| Grade 3 | 8 -9 years |
| Grade 4 | 9 -10 years |
| Grade 5 | 10 -11 years |
| Grade 6 | 11 -12 years |
| Grade 7 | 12 -13 years |
| Grade 8 | 13 -14 years |
| Grade 9 | 14 -15 years |
NB: Options are based on academic background instead of being completely age-dependent.