My DD is only 7 and will already correct my spelling and grammar.

I am glad though, that my kids have the potential to surpass me.
I do often wonder how genetics worked in our situation. I assume my husband and I fall in the above average group, so could it still be genetics? We didn't listen to classical music, have baby smart videos, or do any formal learning before school, so it could not be environment. Heck we did not even know she could read until her K teacher told us.
But the MG/HG had to come from somewhere and there is no denying it anymore.
This thought posses a question.
Do you think it possible to raise your Childs IQ if encouraged during the early years, or do you think that stuff was pushed as way to make money?
How much of a role does environment play in forming a Childs innate abilities?