Education
The person reading has a gap to fill: this subject, these year groups, from this date. Everything on your CV is being matched against that gap.
Teaching is the field where a job title tells a reader least. Teacher covers a trainee and a head of department, so the CV has to carry the specifics itself: the subjects, the age range, the qualifications you can take a class through, and whether you have led anything.
The part most teaching CVs leave out is the outcome. Attainment, progress, attendance, a cohort that improved on the one before it: these are recorded somewhere in every school, and quoting them turns a description of your duties into evidence.
Put the subjects and the age range in the first two lines, and add the second subject you could cover if asked. Schools hire for the timetable they have, and a candidate who closes two gaps is worth more than one who closes a better single gap.
Two or three lines of outcome are enough, and they change the register of the whole document. A cohort that moved from one grade band to another, an intervention with a measured effect, a club that grew: each is a claim somebody could check.
Build this CV now