Children in primary school typically want to climb on the roof. Usually this is a dreadful crime, but must it be?
What about a low, single-story primary school with a roof garden/ playground accessed by ladders, rope ladders, fireman's poles and slides that all lead down into classrooms, the playground, or a central courtyard? There could be wobbly rope bridges from one classroom to another, jungle swings across the courtyard, and whatever else the architect's imagination can dream up?
Reward: The pleasure of seeing it built and enjoyed.