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Pre-algebra is a common name for a course in middle school math. In the United States, pre-algebra is usually taught in the 7th grade. The objective of it is to prepare students for the study of algebra.
Pre-algebra includes several broad subjects:
- Review of natural number arithmetic
- New types of numbers such as integers, fractions, decimals and negative numbers
- Factorization of natural numbers
- Properties of operations such as associativity and distributivity
- Simple (integer) roots and powers
- Rules of evaluation of expressions, such as operator precedence and use of parentheses
- Basics of equations, including rules for invariant manipulation of equations
- Understanding of variable manipulation
- Manipulation and arithmetic with the standard 4-quadrant Cartesian coordinate plane
Pre-algebra may include subjects from geometry, especially subjects that further understanding of algebra in applications to area and volume.
Video Pre-algebra
References
- Szczepanski, Amy F.; Kositsky, Andrew P. (2008), The Complete Idiot's Guide to Pre-algebra, Penguin
Source of the article : Wikipedia
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