Sometimes we need to look at outside the same as we do inside and what our rules there. If it is ok to take toys from one area to another or to mix the books into the block bin or take the doll clothes and stuff then in the firetruck then ok but if you have inside limits you need to show the children the yard and have them think of it as areas too even though there are not rugs or mats or pictures on the wall to designate the space - sandtoys stay with the sandbox and while in the centre you observe the following rules, on the climber, swings, in the playhouse, using the ride ons, etc. If the rocks are off limits then they are off limits just like climbing on the table or sofa is inside the house. Just because outside playtime is supposed to be a time to run and explore does not mean it doesn't come with limits and expectations rules of play.