The more discrete the better.
It helps if you address the basic motivations to be tested, for example:
"We got testing because we suspected that he had special educational advanced learning needs that weren't being met by his current school, and the tester confirmed this."
Seems like a mouthful, but better than saying the G word, especially if other grandchildren exist or might exist someday.
You might also consider -
"His 'readiness to learn' level was found to be well beyond what is offered to 6 year olds at his current school."
It's always good in these situations to do a 'and how was YOUR day?' quick turn the tables. You might want to ask - did any of your children face similar issues?
And - So how did you handle it"?
And- What do you wish you had know then that you know now about it?
Odd are pretty good that the grandparents have experience with this, and that they had to do it on their own, and that they feel quite defensive about the compromises that they had to make. So don't be surprised if you feel like you've stepped on a hot button! OTOH, what a great thing if this experience can help them be more self accepting after all these years.
Good luck!
Grinity
