INCA Education around the world
Northern Ireland : Grade/year level key
Grade/year level key
| Year group | Age range | Key stage | Phase |
| 0-3 | Pre-school and nursery education | ||
| 3-4 | Pre-school and nursery education | ||
| Year 1 | 4-5 | Foundation stage | Primary |
| Year 2 | 5-6 | Foundation stage | Primary |
| Year 3 | 6-7 | 1 | Primary |
| Year 4 | 7-8 | 1 | Primary |
| Year 5 | 8-9 | 2 | Primary |
| Year 6 | 9-10 | 2 | Primary |
| Year 7 | 10-11 | 2 | Primary |
| Year 8 | 11-12 | 3 | Secondary |
| Year 9 | 12-13 | 3 | Secondary |
| Year 10 | 13-14 | 3 | Secondary |
| Year 11 | 14-15 | 4 | Secondary |
| Year 12 | 15-16 | 4 | Secondary |
| Year 13 | 16-17 | ||
| Year 14 | 17-18 |
Bold = compulsory
