Well, G3, you did one better than formal afterschooling, you provided a 'homebased gifted cluster' for your little ones. I do prefer your method, but didn't see it coming fast enough!
Dottie's method of having saving the highest LOG for last is also very effective. But last I heard, she isn't telling how she did it.
((wink))
Still for parents of onlies, or more aged-spaced kids, I think formal afterschooling helps them learn work ethic when the school doesn't provide it. I know that my younger brother got his work ethic from competing with me, but that didn't help me much.
I think starting it when school starts is about right. Since I'm in a situation of 'do what I say, and have observed worked well for others, and not what I did' I'm a little blurry on the details. I just know that by age 7 my little sweetie was singing the 'I shouldn't have to do any work that the other kids don't have to do' song. And we didn't have a leg to stand on because we had always acted up until then that 'school was school's business' because we didn't want to 'make him bored in school' as if that was in our power!
Teachers like things like telling time, reading, addition facts, so I would work on those things in kindy so that the teachers could recognise - hey! this kid knows what we feel is our duty to teach.