In Years 11 to 13, students complete the National Certificate of Educational Achievement (NCEA), the main secondary school qualification in New Zealand. Levels 1, 2 and 3 of NCEA are usually completed in Years 11, 12 and 13 respectively, although students can choose subjects from different levels depending on their progress through the NCEA level system. In Year 11, students study English, Mathematics, Science or Agricultural Science, and three full-year elective subjects. Students in Year 12 study six full-year elective subjects. Students in Year 13 study five full-year elective subjects, with study for an additional four periods per week. Because the 25-period-per-week school timetable is not evenly divisible into six subject lines, students in Years 11 to 13 spend the last period on Wednesdays either in supervised study or sport practice.
