Courtesy of ItsKatato’s Pre-Teens Mod (now updated by adeepindigo), my Sims head straight to middle school for two years before going to senior school.
 School Year | Child Age |
| Year 7 | 11-12 |
| Year 8 | 12-13 |
Middle school gives pre-teens a chance to have a transition before starting at the ‘big school’.
The Daily Plumbob 