Positive and Negative Numbers
Understand positive and negative numbers as describing quantities with opposite directions or values; use them in context such as temperature, floors in a building, and bank balances
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Teaching Table
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“If your child sees temperatures like −3°C and +5°C on a weather forecast, can they figure out how much warmer one day is than the other — even when the answer crosses zero?”
Full guide and materials
- Activity. Understand positive and negative numbers as describing quantities with opposite directions or values; use them in context such as temperature, floors in a building, and bank balances
What to notice. Represent positive and negative numbers on a number line and explain what zero means in context • Add a positive or negative number to any integer using number line reasoning • Subtract a positive or negative number from any integer, understanding that subtracting a negative is equivalent to adding
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If your child sees temperatures like −3°C and +5°C on a weather forecast, can they figure out how much warmer one day is than the other — even when the answer crosses zero?
Understand positive and negative numbers as describing quantities with opposite directions or values; use them in context such as temperature, floors in a building, and bank balances
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Check understanding
- Represent positive and negative numbers on a number line and explain what zero means in context
- Add a positive or negative number to any integer using number line reasoning
- Subtract a positive or negative number from any integer, understanding that subtracting a negative is equivalent to adding
“If your child sees temperatures like −3°C and +5°C on a weather forecast, can they figure out how much warmer one day is than the other — even when the answer crosses zero?”
Curriculum record
- Type
- Representational
- Subject
- Mathematics
- Domain
- Addition & Subtraction
- Age range
- Ages 11–13
Standards