Students design and build a simple rainwater collection model to learn how rain can be captured, stored, filtered, and used to water a garden sustainably.
Introduction. Discuss water waste and water shortages in some regions. Introduce rainwater harvesting: collecting and reusing rainwater for watering land.
How a Rainwater System Works. Use diagrams or a short video to explain the steps:
Group Design & Build. Students work in small groups to sketch or build a mini rainwater collection model, using simple or recycled materials (e.g., bottles as tanks). Encourage practical and creative solutions.
The methods of Sketching and Prototyping are useful here. Here sketching is for a 45 min class. Prototyping offers more depth and experiential learning, but also asks for more time.
Test, Observe, Improve. Students test how water flows and collects in their model, note problems, and suggest improvements.
Present & Give Feedback. Each group presents their model and explains how it works. Peers give brief feedback on clarity, practicality, and sustainability.
The Team Rotation method can be useful methods here.
Reflect. Students summarise what they learned about water conservation, sustainable gardening, and resource management.
| Investigate | Create |