1. Recall the proper ways of sorting materials.
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2. Discuss the importance of sorting materials in home/school/workplace.
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Answer:
1. Spare some more time to separate the wastes down to the material types. Check out your non-organic rubbish. Pick out papers from plastics, glass from aluminum. Also check the plastic resin codes, which one is HDPE, which one is Styrofoam, put them on separated bins.