Operations and Algebraic Thinking · Algebraic Thinking
Subtraction as Difference
Understanding subtraction not just as taking away, but as finding the gap between two numbers.
Key Questions
- 1How are addition and subtraction like a family that works together?
- 2Why is it sometimes easier to count up to find the difference than to count back?
- 3What happens to the difference if we increase both numbers by the same amount?
NCCA Curriculum Specifications
NCCA: Primary - NumberNCCA: Primary - Addition and Subtraction
Class/Year: 2nd Class
Subject: Mathematical Explorers: Building Foundations
Unit: Operations and Algebraic Thinking
Period: Algebraic Thinking
Suggested Methodologies
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