Water Efficiency

Students use their understanding of proportional relationships to explore whether baths or showers use more water. Note: This lesson is designed for 90 minutes and may take multiple class periods to complete.

By Desmos Classroom

Learning goals: Learning Goals • Model a real-world situation by determining the important quantities and making simplifying assumptions. • Use proportional relationships to analyze a problem about water usage. Materials • Tools for creating a visual display • 1-gallon bucket or jug (optional)