Reports come in a wide variety of formats; virtually every school has its own. They are usually termly but this can vary from two to four times a year. In some schools, parents have access to their children’s records (academic, pastoral, disciplinary) through the school’s website.
You should receive a report for each subject studied – increasingly there are separate grades for effort and for attainment − and maybe predicted grades in public examinations. In addition, there will probably be comment from the subject teachers; and over-arching comments from the form tutor, housemaster/mistress or head of the year group, plus the Head or Deputy Head. Some schools provide commodious reports in which there is much detail. Reports often form the basis for parent-teacher meetings, so it is worth keeping them safe for future reference.