Positive and Negative Charges
integers · Creating integer addition expressions with charge cards
Positive and Negative Charges is a Grade 7 small-group activity where students create integer addition expressions from charge cards. Each team has positive and negative values and combines two, three, or four cards to form different equations. Opposite charges with equal magnitude cancel to zero, giving students a concrete way to think about additive inverses.
Use it when students are learning integer addition and zero pairs. Having groups generate several valid expressions from the same set of cards encourages flexible thinking and makes the cancellation idea visible in many combinations. Create a free Find a Math Game account to generate teacher-ready lesson support for Positive and Negative Charges. No credit card, with 3 lifetime lesson generations.
- Grades:
- 7
- Players:
- 4 players
- Materials:
- cards
- Classroom use:
- small group
Standards alignment
Official Rules
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