Return to Grade 13 (thing)

In [South Australia] (and possibly the rest of Australia), grade 13 is another name for re-entry [high school], in which an adult student can study year 11 and 12 subjects to complete and/or top up their high school certificate.

The name "grade 13" in this case is [essentially worthless], since it's really just [grade] [grade 11|11] and [grade 12|12]. The term only serves to confuse people who have no direct links to re-entry students, and therefore completely [misunderstand] the concept.

When I first began high school, I intended to take year 13 for completion's sake. Now I've almost finished year 11, and will (hopefully) get my [high school certificate] at the end of next year. Excluding tertiary education, further completion is not [necessary].