Designed for sustainability and education, this elementary school features passive systems specific to Hawaii’s hot, humid, and rainy climate to maintain thermal comfort throughout the building. All the roof typologies harvest rainwater and channel it into a living machine that filters both rain and grey water. The site’s steep topography is transformed into stepped portions that guide water and serve as interactive elements for the users. This school creates a unique, hands-on learning experience where students engage directly with water harvesting and filtration systems.