Because we want to connect the different playgrounds, to actually make one large, spatially distributed playground, the SLIME concept comes in very handy.
The SLIME connects the different playgrounds, and the flow direction will be controlled by parameters like crowdyness, activities, age, ... of the different playgrounds. For example: a child just tell the SLIME that it wants to go somewhere quieter and the SLIME takes it to a less crowded playground. In this way, we distribute the children evenly over the different playground, we make sure the ages are well mixed, and the most important part is that we mingle the children so they can meet new people every day if they want to.