At our first (and only) meeting with the principal of my son's school it was very apparent that she could not distinguish between top 10%, top 1/3, and 99% percentile.

So our son is in a gifted program they claim is for the top 10% that is somehow expanded to include the top 1/3 and that should be perfect for him because he is in the 99th percentile on everything.

It was pretty obvious to me that there was a lot of intentional "misunderstanding" at the meeting, but when it became apparent that her basic understanding of numbers was that limited (the gifted coordinator was there too and when this happened she started avoiding eye contact) I gave up. They have very powerful weapons in their arsenal: inertia, stupidity, laziness, intentional obtuseness.....

Good luck. I admire your determination and initiative.

BTW - I wouldn't assume they are embarrassed at all. You have to care to be embarrassed.