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Description
Reduce Your Energy Use is a math activity in which students consider those electricity-consuming items in their homes that could be eliminated from their lives and they would still live comfortably.
In groups, students examine cards (provided) showing the energy consumption of various appliances The group selects three appliances to remove from their homes and discuss their choices with the rest of the class. After this discussion the students note their choices along with their reasoning on a worksheet (provided).
Next the students convert the electrical consumption of each appliance to the same format (rate, percentage, fraction or decimal). The appliances are then ordered from least energy user to the most. The students revisit which appliances to remove from their lives and justify their choices.
Extension ideas are included.
General Assessment
Recommendation of how and where to use it
The activity is best suited for the middle school classroom. It supports numeracy outcomes in working with ratios, decimals and percentage and science outcomes related to energy use and electricity.
Relevant Curriculum Units
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- Alberta
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- Grade 6
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- Math
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- Computational fluency and flexibility with numbers extend to operations with whole numbers and decimals
- Data from the results of an experiment can be used to predict the theoretical probability of an event and to compare and interpret
- Mixed numbers and decimal numbers represent quantities that can be decomposed into parts and wholes
- Grade 7
- Step 3Select a subject
- Math
- Step 4Relevant matches
- Computational fluency and flexibility with numbers extend to operations with integers and decimals
- Decimals, fractions, and percents are used to represent and describe parts and wholes of numbers
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- Step 3Select a subject
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- Step 4Relevant matches
- Computational fluency and flexibility extend to operations with fractions
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Themes Addressed
Citizenship (1)
- Sustainable Consumption
Energy (1)
- Energy Use
