Introduction to coral reefs as an ecosystem with focus on the Great Barrier Reef. Designed for KS3 with approx 3 x 1 hour lessons worth of PowerPoints and worksheets. Lesson 1: Intro to reefs, Finding Nemo hook Lesson 2: Threats to coral reefs Lesson 3: Climate change and coral reefs Easy to follow, ready to use resources, ideal for non-specialists and experienced geographers alike.