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This Phone Charger Efficiency lesson plan also includes:
Be efficient in learning about efficiency. A fun hands-on activity has pupils calculate the efficiency of cell phone chargers by measuring the power in and power out. They also learn how to read and use circuit diagrams.
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CCSS:
Designed
NGSS:
Designed
Concepts
Instructional Ideas
- Have the class determine the efficiency of other chargers or appliances
Classroom Considerations
- This is the third of seven lessons in the Off the Grid unit
- Requires a variety of materials; see the resource for a complete list
Pros
- Includes a student reference sheet for formulas and units
- Teacher instructions have diagrams and pictures to show how materials should be set up
Cons
- Does not provide a lab sheet