Assess students' ability to apply simple waste‑sorting rules by classifying everyday household items into recycle, compost, or trash. Scope includes common materials (paper, cardboard, clean plastic bottles, glass jars, metal cans, food scraps, soiled paper, and plastic bags) and basic contamination guidance (clean vs. soiled). Tasks ask learners to sort pictured or real classroom objects, give a brief verbal or written reason for each choice, and correct common misconceptions. Appropriate for Pre-K–Grade 2 to build practical sorting skills and environmental awareness.