Assess students' ability to design a classroom recycling and composting plan that reduces waste by applying environmental concepts: conduct a simple waste audit, classify items as recyclable/compostable/landfill, create labeled bins and clear sorting rules, outline composting logistics (container, materials, maintenance, hygiene), assign roles and schedules, set measurable reduction goals, and describe a basic method for tracking and evaluating results. Appropriate for Grade 3–5; requires practical planning and data recording.