Our (state primary) school have sent letters home 'inviting' certain dc, maybe 5 from a class, to a Maths Open Day at a private high school. Some from Years4, 5 and 6.
There was one last year, it was a Taster Day, and again a handful were selected by the class teachers.
None of the parents have ever shown/registered any interest in the private school and there didn't seem to be any rationale for the selection.
Has anyone experienced this and if so, why do they do it and how do they select certain dc? There was a sports one a couple of years ago and the chosen few got to do rowing, swimming, archery and other things. The other dc were gutted not to have been invited, my ds included!