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Learning by Accident - A Purple Problem: Safe Waste Disposal from School Science Laboratories
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A school custodian, collecting waste materials to be taken to the local landfill site, started a fire when he added some broken glass from a 'Broken Glass' container to the regular garbage, which... read more
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Paper “clickers” are a simple and cost effective way to boost students’ conceptual understanding and improve their metacognitive skills. All you need is a computer, data projector and paper... read more
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