This document provides reading and viewing materials about water systems and sustainability. It includes articles, videos, and pictures about topics like rainwater harvesting, greywater systems, constructed wetlands, and permaculture approaches to water management. Learners are asked to engage with the materials through activities like noting key points, singing the water cycle song, sharing favorite greywater system videos, and posting a synopsis on a class blog. The overall focus is on learning about water as a critical system and ways to better understand and manage this important resource.