I found out Saturday night, as I was going to bed, that Jack had a talk for Primary. I don't need a lot of time, but at least 24 hours notice is good to have. We pretty much sat through Sacrament writing his talk on 3x5 note cards. I then had him take the cards to class and "practice" reading his talk.
Jack starts his talk off a little shaky. He fumbled over the word Nazareth, but recovers nicely and talks loud and clear. I can tell he's getting to the end of his talk, he's in the middle of a personal story. Then, mid sentence, he steps away from the podium and bolts to his chair. From the back row, I try and tell him he has one more note card, but he's sheepishly sitting with his class trying to melt into his chair.
Next time, we'll forgo the note cards and write his talk on a regular piece of paper. Hopefully we'll have more notice.