Multiplying Positive and Negative Integers Using a Number Line

In this video, the teacher explains how to multiply positive and negative integers using a number line. They emphasize the importance of accounting for the signs of the factors and demonstrate how to scale the number line accordingly. The commutative property of multiplication is also discussed, showing that the order of the factors does not affect the product. This lesson provides a clear and visual method for understanding and solving multiplication problems with positive and negative integers.