negative numbers

How Do You Teach Multiplication by Negative Numbers

How do you teach multiplication by negative numbers?

Multiplication by negative numbers is usually introduced in middle school, and may be tricky to teach. In particular, the bar models that were so helpful when we solve multiplication and division problems for whole numbers and fractions in elementary grades are suddenly not very useful anymore. In our teaching, we do not use bar models …

How do you teach multiplication by negative numbers? Read More »