Material Detail

An openly licensed classroom investigation for estimating, measuring, and comparing the electricity use and annual cost of plug-in appliances. Learners use visible kWh and cost formulas, appliance nameplate values or a compatible plug-in electricity meter, their own usage schedules, and a local electricity rate. The accessible HTML activity includes learning objectives, safety guidance, a blank worksheet, five transparent worked examples, reflection questions, facilitator notes, a printable PDF, and versioned CSV and JSON example data. Supplied values and rates are replaceable examples; actual consumption varies by appliance, settings, condition, and use. Created for Appliance Cost Lab with AI assistance for drafting and coding, followed by human review, editing, calculation checks, accessibility testing, and publication verification.

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