The Cost of Electricity

This The Cost of Electricity lesson plan also includes:

Does it cost more to use an electric range or a refrigerator for an hour? Scholars learn how to calculate the cost of electricity in a variety of household appliances. The focus is on the calculations and understanding that even when something is turned off, it still uses electricity if it is plugged in. 

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Extend the lesson by comparing various electric costs
  • Teach a lesson about how individuals can save money on electricity
Classroom Considerations
  • Requires small electrical appliances in order to complete, e.g. hair dryer, toaster, microwave
  • This resource is only available on an unencrypted HTTP website. It should be fine for general use, but don’t use it to share any personally identifiable information
  • Homework solidifies the concept by relating it specifically to the appliances in pupils' own homes
  • Offers three extension ideas for the lesson
  • Walks through how to complete the calculations twice, including once with a solved example
  • None