MATHEMATICS OBJECTIVE
Students will be able to:
- multiply positive and negative integers.
- use models and mathematical properties to develop a deep understanding of and fluency with multiplying integers.
ESSENTIAL UNDERSTANDING
The sign of a product is determined by the signs of the factors in a multiplication expression.
When multiplying two integers, the sign of the product depends on the sign of the factors.
If the signs of the factors are the same, the product is positive.
7 × 3 = 21
-7 × (-3) = 21
If the signs of the factors are different, the product is negative.
-4 × 5 = -20
4 × (-5) = -20