Don't give inaccurate information.

If you were in training for the work year (i.e. still in NIE), you do not get a prorated PB because you are 1) not fully trained and 2) there is no work contribution to be appraised on or given bonus for.

When you get posted into a school, i.e. Apr 2019. And have worked as a full fletched teacher from Apr - Dec 19. You will get a PB for that year and ur sch can decide whether to appraise u or give u a default C. This bonus is prorated (i.e. u won't get the full 1.5 months (if C), but only 3/4 of it since u worked only 3/4 of the year)