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Part : Exploration II. Subtraction: More Than Just “Take Away”
Subject: Early Childhood Mathematics
Addition and subtraction do not simply provide foundations for algebra (or vice versa); these arithmetic operations and algebra are intimately interrelated and mutually support learning in both domains.
National Council of Teachers of Mathematics (2011a)
Photo by Monica Neagoy
- The concept of subtraction holds a position of prominence in preK-2 mathematics.
- Algebraic thinking must be modeled with basic mathematical concepts. Treating arithmetic in algebraic ways begins with addition and subtraction: Working with equivalent numerical expressions and equations is a good start.
- Technology tools compute more rapidly and efficiently than we do, so the bar has been raised for teaching arithmetic: Algebraic reasoning with numbers is the higher goal.
- Understanding subtraction is more ...