The important part is careful support for the transition process. Lots of contact between primary and secondary, opportunities to meet staff and pupils from other feeder primaries, close liaison between teachers,visits to the 'big'
school. A leaving party is just the icing on the cake but it's wrong to switch the attention away from that vital transition process and be distracted by posh frocks and 'graduations.'
Does anyone have a middle name?
The official photo I have of that day shows him the happiest of his time there, in earlier ones he just looks bewildered.

