at that age they should have a good level of fitness anyway (there will always be exceptions!) and therefore plenty of games with ball in hand will keep their attention and also get their heart rates up. A bit nearer the start of the season (2 weeks before I think they're allowed to start) you can bring in some contact, start of with a bit of bag boshing, bull dogs etc, again FUN, before tackling and scrum practice, but the main point of it, FUN FUN FUN! :wink: