teaching aggression and a desire to win

To what extent is it teachable? Some kids clearly have it earlier, and a lot of it is probably straight hormones. There is a radical split.between competitiveness.and.participatory ideologies at present. As with most things in life, there is most likely a need for compromise and balance.

On the one hand, our kids need to be able to compete or, in time, they, and we, will be eaten alive, first by their peers, then by those hungrier than us (China, India, Korea...).  On the other, a six-year old whooping it up every time he wins some trivial competition -- and we've all seen them -- will get him (and it's usually a boy) in trouble at some point in time.